Precision Ball Screw Assemblies
End Bearings and
Nut Housings
The Drive & Control Company
R310EN 3301 (2004.11)
2
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Linear
Motion
Precision
Ball Technology
Screw Assemblies
Ball Rail Systems
Standard Ball Rail Systems
Super Ball Rail Systems
Ball Rail Systems with Aluminum Runner Blocks
High Speed Ball Rail Systems
Corrosion Resistant Ball Rail Systems
Wide Ball Rail Systems
Ball Rail Systems with Integrated Measuring System
Braking and Clamping Units for Ball Rail Systems
Gear Racks for Ball Rail Systems
Miniature Ball Rail Systems
Cam Roller Guides
Roller Rail Systems
Standard Roller Rail Systems
Wide Roller Rail Systems
Heavy Duty Roller Rail Systems
Roller Rail Systems with Integrated Measuring System
Braking and Clamping Units for Roller Rail Systems
Gear Racks for Roller Rail Systems
Linear Bushings and Shafts
Linear Bushings, Linear Sets,
Shafts, Shaft Support Rails, Shaft Support Blocks
Ball Transfer Units
Traditional Engineering Components
Screw Drives
Linear Motion Systems
Linear Motion Slides
– Ball Screw Drive
– Toothed Belt Drive
Linear Modules
–
–
–
–
–
Compact Modules
– Ball Screw Drive
– Toothed Belt Drive
– Linear Motor
Multi-Axis Motion Systems CMS
Precision Modules
Ball Rail Tables
Ball Screw Drive
Toothed Belt Drive
Rack and Pinion Drive
Pneumatic Drive
Linear Motor
– Ball Screw Drive
– Ball Screw Drive
– Linear Motor
Controllers, Motors, Electrical Accessories
Linear Actuators
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
3
Precision Ball Screw Assemblies
Contents
Product Overview
4
Application Examples
14
Inquiries and Orders
16
Dimension Tables
22
– Nuts
22
– Nut Housings
46
– Screws
50
– End Machining Details
54
– Pillow Block Units
Technical Notes
98
Acceptance Conditions and
Tolerance Grades
100
Preload and Rigidity
104
Friction Torques of Seals
110
Mounting
112
Lubrication
114
Design Calculations
118
80
End Bearings, Design Notes,
Mounting Instructions
122
– Bearings
88
End Bearings, Design Calculations
124
– Slotted Nuts and Housing Nuts
96
Design Calculation Service Form
126
Fax Inquiry/Order Form
127
4
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Product Overview
Nuts
and Nut Housings
Precision
Ball Screw
Assemblies
Nuts
Page
Miniature
Single nut with flange
FEM-E-B
22
Diameter d0
Miniature series
Lead P
1
Single nut with flange and
recirculation caps
FBZ-E-S
26
30
Diameter d0
28
Speed series
Single nut with flange and
recirculation caps
FEP-E-S
5
10
Lead P
5
10
Screw-in nut
12
16
20
Lead P
Diameter d0
Single nut with flange and
recirculation caps
FSZ-E-S
Diameter d0
24
2.5
6
8
12
ECO series
Screw-in nut
ZEV-E-S
2
5
10
20
Single nut with flange
FBZ-E-S
20
25
32
40
Single nut with flange
FSZ-E-S
Lead P
25
32
40
20
25
32
Standard series
Single nut with flange
DIN 69 051, Part 5
FEM-E-C
32
Adjustable-preload single nut
DIN 69 051, Part 5
SEM-E-C
34
Lead P
Single nut with flange
FEM-E-S
36
Adjustable-preload single nut
SEM-E-S
38
Cylindrical single nut
ZEM-E-S
40
Double nut with flange
DIN 69 051, Part 5
FDM-E-C
42
Double nut with flange
FDM-E-S
44
Diameter d0
2.5
5
10
12
16
20
25
32
8
12
16
20
25
32
40
50
63
80
100
125
Single nut
Double nut
40
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
5
Precision Ball Screw Assemblies
Nut housings
MGS
for Standard series
FEM-E-S
FDM-E-S
SEM-E-S
Page
46
Lead P
MGD
for Standard series
FEM-E-C
FDM-E-C
SEM-E-C
48
Diameter d0
2.5
16
20
25
32
40
50
63
80
5
10
12
16
20
25
32
40
MGD
MGS
6
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Product
Screws
and End Machining
PrecisionOverview
Ball Screw
Assemblies
Screws
Page
Precision-rolled screw SN-R
Tolerance grades
T5, T7, T9
P5 available upon request
50
Acceptance conditions
100
d0 x P
6x1 / 6x2 / 8x1 / 8x2 upon request
8 x 2.5
12 x 2, 5, 10
16 x 5, 10, 16
20 x 5, 20, 40
25 x 5, 10, 25
32 x 5, 10, 20, 32
40 x 5 / 50 x 5
40 x 10, 12, 16, 20, 40
50 x 10, 12, 16, 20, 40
63 x 10, 20, 40
80 x 10
(mm)
1500 2500
4500 5000
7500
Maximum length
upon request
standard, available at short notice
Precision screw SN-F
Tolerance grades
P3, P5
P1 available upon request
52
Acceptance conditions
100
d0 x P
8 x 2.5
12 x 5, 10
16 x 5, 10, 16
20 x 5, 20
25 x 5, 10, 25
32 x 5, 10, 20, 32
40 x 5 / 50 x 5
40 x 10, 12, 16, 20, 40
50 x 10, 12, 16, 20, 40
63 x 10, 20, 40
80 x 10, 20
100 x 10, 20
125 x 10, 20
(mm)
80
1200 1500 3000 4000 5000
1000
8000
Maximum length
upon request
standard, available at short notice
Screw end machining
54
Lead P
Diameter d0
1
6
8
12
16
20
25
32
40
50
63
80
2
2.5
5
10
12
16
20
25
32
40
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
SEC-F
Page
80
Lead P
SEC-L
82
SEB-F
84
SEB-L
86
Diameter d0
1
2
2.5
5
10
12
16
20
25
32
40
25
32
40
6
8
12
16
20
25
32
40
SEC-F
SEC-L
SEB-F
SEB-L
Bearings
LAF
88
Lead P
LAN
90
LAD
92
LAL
94
Diameter d0
1
2
2.5
5
10
12
6
8
12
16
20
25
32
40
50
63
80
LAF
LAN / LAD
Lead P
Diameter d0
1
6
8
12
16
20
25
32
LAL
Single parts
Slotted nut
NMA, NMZ, NMG
Housing nut GWR
7
Precision Ball Screw Assemblies
Product Overview Bearings and Accessories
Pillow block units
Bosch Rexroth AG
96
97
2
2.5
5
10
16
20
8
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Product
PrecisionOverview
Ball Screw Assemblies
Definition of a precision ball screw
assembly
DIN 69 051, Part 1 defines a ball screw
as follows:
An assembly comprising a ball screw
shaft and a ball nut and which is capable of converting rotary motion into
linear motion and vice versa. The rolling elements of the assembly are
balls.
As simple as it is to describe the
elementary function of a precision
ball screw assembly, in practice you
are faced with a variety of types and
applications.
New nut series have increased the
size of the catalog. The catalog now
features additional miniature sizes
and double-square leads.
The range also includes an ECO series for simple applications requiring
low-cost solutions.
The ECOplus versions offer the same
performance data in all respects as
the Standard nuts. The lower cost was
achieved here by simplifying the nut
body design.
The new series are tailor-made for specific applications or instances of use:
– Miniature series: extends the range to
cover smaller sizes
– ECO series: the low-cost solution
through to the medium size range in
the form of screw-in nut or single nut
with flange
– Speed series: maximum linear speeds
coupled with high load rating and
short nut length
The nuts with flanges from the Standard
series are available in versions with either
Rexroth or DIN mounting dimensions.
The related standards (DIN 69 051 and
ISO 3408) are therefore fully supported
by Rexroth.
In order to make it easier for customers to decide between particular series
and/or sizes in terms of delivery time as
well, we have introduced A, B and C
categories for nuts.
Each individual ball nut part number
is assigned to a particular category.
Category A parts are always stocked
in the quantities customarily ordered.
Certain stocks of Category B parts are
also kept, but customers should inquire
about the availability of these parts.
Category C parts are exclusively made
to order.
Almost all single nuts in the version with
backlash can be easily mounted on the
screw by the customer, especially during
servicing. In addition, the adjustablepreload single nut of the Standard series
allows the customer to perform preload
adjustment in-house.
Matching nut housings for the Standard
series and several types of end bearings
are also stocked.
Precision-rolled screws in a variety of
sizes and of unequaled quality have long
been an essential part of our product
range. Our comprehensive, worldwide
stocks guarantee fast response times in
every location. Availability is one advantage, low prices another. Every nut featured in this catalog can be combined
with the precision-rolled screws. The
only exceptions are nut sizes ≥ 80x20.
For these applications and other specific
instances of use we manufacture screws
to individual customer requirements by
means of grinding or whirling.
Precision-rolled screws can also be supplied without ball nuts to allow customers
to machine the screw ends on their own
facilities. Since hard machining has meantime become an established method, we
no longer anneal the screw ends, a process which was previously necessary but
which lowers the quality of the material.
For special servicing cases, please consult us.
Rexroth Precision Ball Screw Assemblies provide technical designers with
diverse solutions for positioning and transport tasks with driven screws or also with
driven nuts.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
9
Precision Ball Screw Assemblies
Smooth operation due to the design of
the internal recirculation and optimal liftoff of balls from the raceway
Preloaded or adjustable
single nut
Short nut length
High load rating due to large
number of balls
No protruding parts,
nut is easily mounted
Smooth outer shell
Effective, wiping sealing
Large range of series
available ex stock
The WINKGT calculation software for
designing and calculating precision ball
screw assemblies for the operating system Windows 95 through XP is available
on CD-ROM. This makes it very easy for
you to perform your own technical calculations.
Alternatively, you can arrange for Rexroth
to produce a technical design calculation
on your behalf by completing and returning the “Design Calculation Service
Form” on Page 126.
For the simplified creation of drawings
of our precision ball screw assemblies
as a CAD file, see the section headed
“Inquiries and Orders” on Page 16 and
the “Inquiry/Order” form on Page 127.
10
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Product Overview
Precision
Ball Screw Assemblies
Rexroth Precision Ball Screw
Assemblies with Driven Screws
End bearings
Nut housings
Rexroth precision ball screw assemblies
are available with steel or aluminum
pillow block units or bearing units complete with matching slotted nuts.
Rexroth nut housings for various flanged
nuts complete the ready-to-install
Rexroth product range.
Rexroth precision pillow block units
enable:
– Easy installation due to the variable
fixture options and reference edges
– Use of premachined pin holes provides increased mounting accuracy
Available from stock in
many versions and sizes
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
11
Precision Ball Screw Assemblies
High axial load capacity
High rigidity
High dynamics
Low friction
12
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Product
PrecisionOverview
Ball Screw Assemblies
You will find further system solutions
in our catalog on Rexroth Drive Units.
This catalog contains precision ball
screw assemblies with a protecting
housing, including versions with integrated screw supports, driven nuts
with side drive timing belt and the
matching AC servo motors.
Available Precision Ball Screw Assembly catalogs
R310EN 3301 Precision Ball Screw Assemblies, End Bearings and
Nut Housings
R310EN 3302 Precision Ball Screw Assemblies for Machine Tools
R310DE 3303 Precision Ball Screw Assemblies, Super Heavy Duty Series
(in preparation)
R310DE 3304 Drive Units (in preparation)
RDE 83312
RDE 83314
Precision Ball Screw Assemblies, Miniature Series
Rexroth Ball Screw Assemblies, ECO Series
Screw drives R310EN 3301 (2004.11)
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
13
Precision Ball Screw Assemblies
For machine tool and heavy duty
applications with precision ball
screw assemblies, please ask
for the respective catalogs.
For miniature and ECO applications,
catalogs containing plug-and-play
ball screw assemblies are available.
To perform particularly demanding
positioning tasks we have developed
the Integrated Measuring System for
Ball Rail and Roller Rail Systems
(Catalog R310EN 2350). The linear
measuring system in the rail then replaces the positioning information in
the ball screw. This way, we are able
to achieve a maximum of flexibility in
design and a maximum of precision in
operation by the customer.
14
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Application Examples
Rexroth Precision Ball Screw
Assemblies have been successfully implemented worldwide in
the following areas:
–
–
–
–
–
–
–
–
–
–
–
Cutting machine tools
Forming machine tools
Automation and handling
Woodworking
Electrical and electronics
Printing and paper
Injection molding machines
Food and packaging industry
Medical equipment
Textile industry
etc.
Machining center
Vertical axis with driven nut
Screw drives R310EN 3301 (2004.11)
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
15
Precision Ball Screw Assemblies
Folding press
Lathe
16
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Inquiries and Orders
All nuts, screws and end machining details can now be defined with the order
code (up to screw diameter 80 mm) as a
complete precision ball screw assembly.
We have taken account of all former
selection criteria as well as adding new
ones. The diversity of possible combinations is limitless.
Attention is focused in particular on
the definition of end machining details.
For many design versions there is a
prepared definition, providing you with
a suitable solution for practically every
application.
If you wish to send us an inquiry, simply
complete the form on Page 127 of this
catalog.
If no drawing is available, please specify
your wishes using the variable ordering
code. You will find a summary of the
options on Page 19.
Should you already have a drawing
available as a CAD file (in Pro/E20,
AutoCAD/Genius14, AutoCAD 2000
or DXF formats), you can send us the
data by e-mail
(mail to: screws.brl@boschrexroth.de).
If the drawing exists on paper only, you
can, of course, send it to us by conventional mail.
Each customer-specific precision ball
screw assembly is issued with an ID
number when an order is placed. If you
have any subsequent queries, you need
only quote this ID number.
Using the ordering data from the catalog, you can also easily generate a
drawing in AutoCAD14 format via the
functionality provided on our website.
A guided dialogue is provided for data
input so as to avoid typing errors, and
all data selected can be checked within
a few minutes against the drawing that
has been generated. This drawing can
then be used directly by our production
departments, which accelerates order
processing and delivery. The drawing
generation functionality can be used
without registering with us or entering
a password or customer number.
To access this functionality, visit
“http://www.boschrexroth.de/linearshop”.
Once inside the eShop, select
“Precision Ball Screw Assemblies”, then
“Ball Screw Assemblies Configurations”,
and a window will appear with boxes
for input of the ordering data you have
chosen from the catalog.
Data can be input in two ways. In the
default mode, “Configuration of options”,
the dialog is supported by meaningful
default settings to minimize input errors.
The “Expert configuration” mode allows
much more rapid input of data, but requires a certain amount of experience.
When the dialogue is completed, a click
on the “CAD-Model” button leads to a
further dialog box asking for input of the
e-mail address for electronic transmission of the drawing to the user.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
17
Precision Ball Screw Assemblies
Nominal diameter, leads
Lead P
2.5
Nominal diameter d0
The ordering data given on Page 20
cover all the parameters of a precision
ball screw assembly. Once you have
defined the nominal diameter and lead
and entered the overall length, the functionality guides you through a succession of dialog boxes allowing you to
select the desired options.
5
10
12
16
20
25
32
40
8
12
16
20
25
32
40
50
63
80
Screws > ø 80 mm available upon request
Overall length Lov of a precision ball screw assembly
Overall length Lov
18
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Nut type
Mounting direction of nut types
The various series versions and forms are shown below.
Definition: The centering diameter on a nut with flange, the
slotted nut on a driven nut and the lube bore on a cylindrical
nut points to the right end of the screw.
FEM-E-B Single nut
with flange
Miniature series
Centering diameter D1
Page 22
ZEV-E-S Screw-in nut
ECO series
FBZ-E-S Single nut with
flange, ECO series
Centering diameter D1
Page 24
FSZ-E-S Single nut with
flange, ECOplus series
Page 26
FEP-E-S Single nut with
flange, Speed series
Lube port
Page 28
FEM-E-C
Single nut with flange
DIN 69 051, Part 5
Standard series
Page 30
SEM-E-C Adjustable-preload
single nut, DIN 69 051, Part 5
Standard series
Lube port
Page 32
FEM-E-S
Single nut with flange
Standard series
Page 34
SEM-E-S
Adjustable-preload single nut
Standard series
Slotted nut
Page 36
Page 38
ZEM-E-S
Cylindrical single nut
Standard series
Driven nut
Page 40
FDM-E-C Double nut with
flange, DIN 69 051, Part 5
Standard series
Page 42
FDM-E-S
Double nut with flange
Standard series
Page 44
FAR-B-S
For driven nuts, please refer
to catalog R310EN 3304
(in preparation)
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
19
Precision Ball Screw Assemblies
Screw ends, forms for a left or right screw end
Basic version
With keyway
Cut to size only “T”
99
00
99
00
Page 55
Page 54
02
01
Page 56
11
Page 56
12
Page 58
Page 58
21
Page 60
31
Page 62
41
End friction-welded
with/without keyway
Page 64
51
53
Page 66
61
Page 66
62
Page 68
71
Page 68
72
Page 70
81
Page 70
83
84
82
Page 72
91
92
93
94
Page 76
Machining of end face
Page 74
Page 72
Page 76
Z
Centering hole DIN 332-D
Page 78
S
Hex socket
20
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Ordering Code
Precision Ball Screw Assembly
Nut type
FEM-E-B
ZEV-E-S
FBZ-E-S
FSZ-E-S
FEP-E-S
FEM-E-C
FEM-E-S
SEM-E-C
SEM-E-S
ZEM-E-S
FDM-E-C
FDM-E-S
Size
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 81Z120 41Z120 1250 1 1
Single nut with flange Miniature series
Screw-in nut ECO series
Single nut with flange ECO series
Single nut with flange ECOplus series
Single nut with flange Speed series
Single nut with flange to DIN 69 051, Part 5
Single nut with flange, Rexroth mounting
dimensions
Adjustable-preload single nut to DIN 69 051,
Part 5
Adjustable-preload single nut, Rexroth
mounting dimensions
Cylindrical single nut, Rexroth mounting
dimensions
Double nut with flange to DIN 69 051, Part 5
Double nut with flange, Rexroth mount. dim.
Nominal diameter (mm)
Lead (mm)
Direction of lead R … right, L … left
Ball diameter (mm)
Number of ball track turns in the nut
Seal
Preload
0 … none
2*… reinforced seal
1 … standard seal
X … not possible
0 … standard backlash
1 … reduced backlash
4 … 10% (double nut)
5 … 7% (double nut)
2**… 5% (single nut)
6 … 3% (single nut)
3 … 2% (single nut) standard
Precision
(P5) T5 T7 T9 … precision-rolled screw
P1 P3 P5 … precision screw
Screw
R … precision-rolled
Left screw end
F … precision
Form
Option
Z … centering to DIN 332-D
S … hex socket
K … none
Version
Right screw end
see left screw end
Overall length Lov (mm)
Documentation
0 … standard (acceptance test report)
– is always supplied
2 … torque test report
3 … lead and torque test report
1 … lead test report
Lubrication
0 … preserved
1 … preserved and nut with basic greasing
* only for d0 25 to 40 of the precision-rolled version; note higher frictional torque!
** only for d0 16 to 63
Note: It is also possible to process inquiries based on a customer’s drawings.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
21
Precision Ball Screw Assemblies
For screws supplied separately; cut to size only “T”
Screw
SN
20 x 5 R x 3
X X T7 R 00 T 200 00 T 200 1250 0 0
Screw
Size
Nominal diameter (mm)
Lead (mm)
Direction of lead R … right, L … left
Ball diameter (mm)
Seal
X … not possible
Preload
X … not possible
Precision
T5 T7 T9 … precision-rolled screw
Screw
R … precision-rolled screw
Left screw end
Form
Option
T … cut to size only
Version (corresponds to screw nominal diameter)
Right screw end
see left screw end
Overall length Lov(mm)
Documentation
0 … standard (acceptance test report)
1 … lead test report
Lubrication
0 … preserved
For separately supplied screws with annealed ends (special servicing cases)
For special servicing cases involving
precision-rolled screws SN-R with
annealed ends, please consult us.
150 annealed
80 annealed
1250 overall length
22
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Miniature Single Nut with Flange FEM-E-B
Miniature series
Rexroth mounting dimensions
Flange type B
With seals
With backlash or reduced backlash
For precision-rolled screws SN-R of
tolerance grade T5, T7
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
FEM-E-B 6 x 2R x 0.8 - 4 1 1 T7 R 83K060 41K050 250 0 1
Category
d0
P
Size
A
A
A
A
A
A
A
A
6 x 1 R x 0.8 - 4
6 x 2 R x 0.8 - 4
8 x 1 R x 0.8 - 4
8 x 2 R x 1.2 - 4
8 x 2.5R x 1.588 - 3
12 x 2 R x 1.2 - 4
12 x 5 R x 2 - 3
12 x 10 R x 2 - 2
Part number
d0 x P x Dw - i
R1532 100 06
R1532 120 06
R1532 200 06
R1532 220 06
R1532 230 06
R1532 420 06
R1532 460 06
R1532 490 06
Load ratings
dyn.
stat.
C
C0
(N)
(N)
Speed*
900
890
1020
1870
2200
2240
3800
2500
3
6
3
6
15
12
30
60
1290
1280
1740
2760
2800
4160
5800
3600
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
vmax.
[m/min]
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
23
Precision Ball Screw Assemblies
Lube port
L7
D7
ϕ
D1
D6
ϕ
D5
L14
D4
L3
L4
L
d0
d1
d2
Dw
Dimensions (mm)
d1
d2
6.0
6.0
8.0
8.0
7.5
11.7
11.4
11.4
5.3
5.3
7.3
7.0
6.3
10.8
9.9
9.9
D1
g6
12
12
16
16
16
20
22
22
Weight
D4
D5
D6
D7
L
L3
2
2
2
2
2
2
2
2
24
24
28
28
28
37
37
37
18
18
22
22
22
29
29
29
3.4
3.4
3.4
3.4
3.4
4.5
4.5
4.5
19.5
22.5
22
25
16
19
28
33
3.5
3.5
6
6
6
8
8
8
L4
L7
16
19
16
19
10
11
20
25
3.5
3
3.5
3
3
2.5
6
8
L14
16
16
19
19
19
24
24
24
ϕ
(°)
m
(kg)
30
30
30
30
30
30
30
30
0.02
0.02
0.035
0.05
0.03
0.055
0.075
0.085
24
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Screw-in Nut ZEV-E-S
ECO series
Rexroth mounting dimensions
Without seals (no initial greasing)
Seals available on request
With backlash
For precision-rolled screws SN-R
of tolerance grade T7, T9
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
ZEV-E-S 20 x 5R x 3-4 0 0 T7 R 81K120 41K120 550 0 1
Category
d0
P
Size
A
A
A
A
A
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5R x 3 - 3
16 x 10R x 3 - 3
20 x 5R x 3 - 4
Part number
d0 x P x D w - i
R2542 430 01
R2542 430 11
R2542 000 01
R2542 000 11
R2542 100 01
Load ratings
dyn.
stat.
C
C0
(N)
(N)
Speed*
2300
1500
5600
5800
8600
30
60
25
50
20
3500
2200
7100
7400
12900
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
vmax.
[m/min]
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
25
Precision Ball Screw Assemblies
Lube port
Bore for assembly wrench
L7
D8
D1
G1
D4
L 15
w
L
Dimensions (mm)
d1
d2
D1
h10
D4
D8
G1
L
± 0.3
L7
L15
11.4
11.4
15.0
15.0
19.0
9.9
9.9
12.9
12.9
16.9
25.5
25.5
32.5
32.5
38
2.7
2.7
2.7
2.7
2.7
3.2
3.2
4.2
4.2
8
M20 x 1
M20 x 1
M26 x 1.5
M26 x 1.5
M35 x 1.5
36
40
40
54
50
8.5
8.5
10.5
10.5
12.5
10
10
12
12
14
d0
d1
d2
D
Backlash
Weight
max.
(mm)
m
(kg)
0.1
0.1
0.1
0.1
0.1
0.09
0.10
0.14
0.21
0.25
26
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Single Nut with Flange and Recirculation Caps FBZ-E-S
ECO series
Rexroth mounting dimensions
With seals
With backlash
For precision-rolled screws SN-R
of tolerance grade T7, T9
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
FBZ-E-S 20 x 5R x 3-4 1 0 T9 R 81K120 41K120 550 0 1
Size
B
B
B
B
B
20 x 5R x 3 - 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
Part number
d0 x P x Dw - i
R2542 100 02
R2542 200 02
R2542 200 12
R2542 300 02
R2542 300 12
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Load ratings
dyn.
C
(N)
stat.
C0
(N)
Speed*
vmax.
[m/min]
8600
9500
9400
13000
19000
12900
16300
16200
24000
35000
20
16
32
13
25
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
27
Precision Ball Screw Assemblies
Plastic recirculation cap at both ends
D7
Lube port at flange center
S
6x
60
°
D5
D1
D1
ϕ
D6
L5
L3
L 10
Undercut located
on mounting side
Dimensions (mm)
d1
d2
19.0
24.0
24.0
31.0
31.0
16.9
21.9
21.9
28.4
27.9
D1
-0.2
33
38
38
48
48
d0
d1
d2
D
w
L
Backlash
D5
D6
D7
L
L3
58
63
63
73
73
45
50
50
60
60
6.6
6.6
6.6
6.6
6.6
40
43
62
46
77
10
10
10
12
12
L5
± 0.5
15
16.5
16
17
20
L10
15
16.5
36
17
45
S
M6
M6
M6
M6
M6
ϕ
(°)
30
30
30
30
30
max.
(mm)
0.1
0.1
0.1
0.1
0.1
Weight
m
(kg)
0.22
0.25
0.34
0.41
0.63
28
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Single Nut with Flange and Recirculation Caps FSZ-E-S
ECOplus series
Rexroth mounting dimensions
ECOplus load ratings in accordance
with Standard series (see P. 36)
With seals
With backlash, reduced backlash,
preload 2%; 3%; 5%
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
FSZ-E-S 20 x 5R x 3-4 1 0 T7 R 81K120 41K120 550 0 1
Category
d0
P
Size
A
A
A
A
A
A
A
A
A
20 x 5R x 3 - 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 20R x 6 - 3
Part number
d0 x P x D w - i
R1502 110 41
R1502 210 41
R1502 240 41
R1502 310 41
R1502 340 41
R1502 370 41
R1502 410 41
R1502 440 41
R1502 470 41
Load ratings
dyn.
stat.
C
C0
(N)
(N)
Speed*
14300
15900
15700
21600
31700
13500
29100
50000
37900
30
30
60
23
47
94
19
38
75
21500
27200
27000
40000
58300
21800
64100
86400
62800
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
vmax.
[m/min]
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
29
Precision Ball Screw Assemblies
Plastic recirculation cap
D7
Lube port at flange center
S
L10
6x
60
°
D5
D1 –0.05
–0.1
D1
D1+0.7
ϕ
D6
L5
L3
L4
Plastic recirculation cap
d0
d2
Note:
On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
d1
D
w
L
Dimensions (mm)
d1
19.0
24.0
24.0
31.0
31.0
31.0
39.0
38.0
38.0
Weight
d2
D1
g6
D5
D6
D7
L
± 0.5
L3
L4
16.9
21.9
21.9
28.4
27.9
27.9
36.4
33.8
33.8
33
38
38
48
48
56
56
63
63
58
63
63
73
73
80
80
95
95
45
50
50
60
60
68
68
78
78
6.6
6.6
6.6
6.6
6.6
6.6
6.6
9
9
40
43
62
46
77
65
52
71
89
10
10
10
12
12
12
14
14
14
6
6
16
6
16
10
8
16
25
L5
15
16.5
16
17
20
19
18.5
22
22
L10
S
ϕ
(°)
m
(kg)
15
16.5
36
17
45
34
19.5
35
53
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
30
30
30
30
30
30
30
30
30
0.22
0.25
0.34
0.41
0.63
0.69
0.54
1.06
1.30
30
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Single Nut with Flange and Recirculation Caps FEP-E-S
Speed series
Rexroth mounting dimensions
With seals
With backlash, reduced backlash
or preload 2%
For precision-rolled screws SN-R
(quadruple) of tolerance grade
T5, T7, T9
=
=
Dw =
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
i
= axb
“a” Bearing turns per thread
“b” Number of bearing threads on the
screw
Ordering code:
FEP-E-S 25 x 25R x 3.5-1.2x4 1 0 T5 R 81K170 41K120 1000 0 1
Category
d0
P
Size
A
A
A
20 x 40R x 3.5 - 1 x 4
25 x 25R x 3.5 - 1.2 x 4
32 x 32R x 3.969 - 1.2 x 4
Part number
d0 x P x D w - i
R2522 100 11
R2522 200 01
R2522 300 01
Load ratings
dyn.
stat.
C
C0
(N)
(N)
Speed*
8000
19700
26300
150
120
120
14900
39400
57600
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
vmax.
[m/min]
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
31
Precision Ball Screw Assemblies
Plastic recirculation cap
L5
L8
D7
Lube port
S
6x
60
°
D5
D1
D1-2
ϕ
D6
L3
L4
Plastic recirculation cap
d0
d1
d2
D
w
L
Dimensions (mm)
Weight
d1
d2
D1
g6
D5
D6
D7
L
± 0.3
L3
L4
L5
L8
S
ϕ
(°)
m
(kg)
19
24
31
16.4
21.4
28.4
38
48
56
63
73
80
50
60
68
6.6
6.6
6.6
57
52
68
12
12
15
23
14
21
11
13
16
8.0
5.0
7.7
M6
M6
M6
30
30
30
0.51
0.51
0.78
32
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Single Nut with Flange FEM-E-C
Standard series
Mounting dimensions to
DIN 69 051, Part 5
Flange type C
With standard seals
Reinforced seals, see Page 110
With backlash, reduced backlash,
preload 2%; 3%; 5%
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
FEM-E-C 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Category
d0
P
Size
A
A
A
A
A
A
A
A
A
A
A
A
B
A
C
A
A
A
B
A
C
B
A
B
B
B
C
C
B
C
C
C
C
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 3
20 x 5R x 3 - 4
20 x 20R x 3.5 - 3
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 3
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 3
32 x 32R x 3.969 - 3
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 12R x 6 - 4
40 x 16R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 6
50 x 12R x 6 - 6
50 x 16R x 6 - 6
50 x 20R x 6.5 - 5
50 x 40R x 6.5 - 3
63 x 10R x 6 - 6
63 x 20R x 6.5 - 5
63 x 40R x 6.5 - 3
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Part number
d0 x P x D w - i
R1502 010 65
R1502 040 85
R1502 060 65
R1502 110 85
R1502 170 65
R1502 210 85
R1502 240 85
R1502 280 65
R1502 310 85
R1502 340 86
R1502 370 65
R1502 390 65
R1502 410 86
R1502 440 85
R1502 450 65
R1502 460 65
R1502 470 85
R1502 490 65
R1502 510 86
R1502 540 86
R1502 550 66
R1502 560 66
R1502 570 86
R1502 590 65
R1502 640 86
R1502 670 86
R1502 690 65
R1502 740 86
R1502 770 96
R1502 840 66
R1502 870 66
R1502 940 66
R1502 970 66
Load ratings
dyn.
stat.
C
C0
(N)
(N)
12300
9600
9300
14300
13300
15900
15700
14700
21600
31700
19700
19500
29100
50000
49900
49700
37900
37000
32000
79700
79600
79400
75700
46500
88800
83900
53400
108400
262700
119500
295100
130600
326500
16100
12300
12000
21500
18800
27200
27000
23300
40000
58300
33700
34000
64100
86400
86200
85900
62800
62300
81300
166500
166400
166000
149700
85900
214300
190300
114100
291700
534200
371900
686400
468700
870400
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Speed*
vmax.
[m/min]
30
60
96
30
120
30
60
150
23
47
94
150
19
38
45
60
75
150
15
30
36
48
60
120
24
48
95
19
30
10
20
8
16
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
33
Precision Ball Screw Assemblies
Lube port at flange center**
d0 ≤ 32
L 10
D7
L9
90°
L9
-0.05
D1 -0.1
D1
22.5°
D5
S
BB2
BB1
D
6
L3 L4
Note:
On a precision screw
SN-F, the root diameter
d2 can be smaller by max.
0.3 mm for manufacturing reasons. On a size
20x20 precision-rolled
screw SN-R, d1 = 19 mm.
D7
L
d0 ≥ 40
S
90°
30°
d0
d1
d2
30°
Dw
D
6
Dimensions (mm)
d1
d2
15.0
15.0
15.0
19.0
19.3
24.0
24.0
24.0
31.0
31.0
31.0
31.0
39.0
38.0
38.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
98.0
96.0
123.0
121.0
12.9
12.9
12.9
16.9
16.7
21.9
21.9
21.4
28.4
27.9
27.9
27.9
36.4
33.8
33.8
33.8
33.8
33.8
46.4
43.8
43.8
43.8
43.4
43.4
56.8
56.4
56.4
73.3
67.0
93.4
87.1
118.0
112.0
D1
g6
28
28
28
36
36
40
40
40
50
50
50
50
63
63
63
63
63
63
75
75
75
75
75
75
90
95
95
105
125
125
150
150
170
D5
48
48
48
58
58
62
62
62
80
80
80
80
93
93
93
93
93
93
110
110
110
110
110
110
125
135
135
145
165
165
202
202
222
Hole
pattern
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
D6
38
38
38
47
47
51
51
51
65
65
65
65
78
78
78
78
78
78
93
93
93
93
93
93
108
115
115
125
145
145
176
176
196
Weight
D7
L
L3
L4
5.5
5.5
5.5
6.6
6.6
6.6
6.6
6.6
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
11.0
11.0
11.0
11.0
11.0
11.0
11.0
13.5
13.5
13.5
13.5
13.5
17.5
17.5
17.5
38
45
61
40
77
45
64
95
48
77
84
120
54
70
75
90
88
142
54
90
105
128
132
149
90
132
149
95
170
95
170
95
170
12
12
12
12
12
12
12
12
13
13
13
13
15
15
15
15
15
15
15
18
18
18
18
18
22
22
22
22
25
25
30
25
40
10
16
20
10
25
10
16
30
10
16
25
40
10
16
25
25
25
45
10
16
25
25
25
45
16
25
45
16
25
16
25
16
25
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm
L9
44.0
44.0
44.0
51.0
51.0
55.0
55.0
55.0
71.0
71.0
71.0
71.0
81.5
81.5
81.5
81.5
81.5
81.5
97.5
97.5
97.5
97.5
97.5
97.5
110.0
117.5
117.5
127.5
147.5
147.5
178.5
178.5
198.5
L10
26
33
49
28
65
33
52
83
35
64
71
107
39
55
60
75
73
127
39
72
87
110
114
131
68
110
127
73
145
70
140
70
130
S**
m
(kg)
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
0.19
0.21
0.26
0.31
0.49
0.36
0.47
0.63
0.62
0.84
0.90
1.21
1.03
1.19
1.27
1.51
1.44
2.16
1.39
2.14
2.38
2.75
2.73
3.04
2.56
4.51
5.04
3.40
10.20
4.40
14.30
5.65
16.10
34
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Adjustable-Preload Single Nut SEM-E-C
Standard series
Mounting dimensions to
DIN 69 051, Part 5
Flange type C
With standard seals
Reinforced seals, see Page 110
Adjustable preload
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
SEM-E-C 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Size
B
C
C
B
B
B
B
C
B
B
C
B
B
B
C
B
B
C
B
C
B
B
B
B
C
C
C
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 3
20 x 5R x 3 - 4
20 x 20R x 3.5 - 3
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 3
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 3
32 x 32R x 3.969 - 3
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 12R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 6
50 x 12R x 6 - 6
50 x 20R x 6.5 - 5
50 x 40R x 6.5 - 3
63 x 10R x 6 - 6
63 x 20R x 6.5 - 5
63 x 40R x 6.5 - 3
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
Part number
d0 x P x Dw - i
R1512 010 55
R1512 040 75
R1512 060 55
R1512 110 75
R1512 170 55
R1512 210 75
R1512 240 75
R1512 280 55
R1512 310 75
R1512 340 75
R1512 370 55
R1512 390 55
R1512 410 75
R1512 440 75
R1512 450 55
R1512 470 75
R1512 490 55
R1512 510 75
R1512 540 75
R1512 550 55
R1512 570 76
R1512 590 55
R1512 640 75
R1512 670 76
R1512 690 55
R1512 740 75
R1512 770 56
Load ratings
dyn.
C
(N)
12300
9600
9300
14300
13300
15900
15700
14700
21600
31700
19700
19500
29100
50000
49900
37900
37000
32000
79700
79600
75700
46500
88800
83900
53400
108400
262700
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Speed*
stat.
C0
(N)
16100
12300
12000
21500
18800
27200
27000
23300
40000
58300
33700
34000
64100
86400
86200
62800
62300
81300
166500
166400
149700
85900
214300
190300
114100
291700
534200
vmax.
[m/min]
Centering diameter D1
after adjustment
(mm)
min.
max.
30
60
96
30
120
30
60
150
23
47
94
150
19
38
45
75
150
15
30
36
60
120
24
48
95
19
30
27.940
27.940
27.950
35.935
35.945
39.935
39.935
39.945
49.935
49.935
49.945
49.945
62.931
62.931
62.931
62.941
62.941
74.931
74.931
74.931
74.941
74.941
89.926
94.936
94.936
104.926
124.931
27.975
27.975
27.978
35.970
35.973
39.970
39.970
39.973
49.970
49.970
49.973
49.973
62.966
62.966
62.966
62.969
62.969
74.966
74.966
74.966
74.969
74.969
89.961
94.964
94.964
104.961
124.959
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
35
Precision Ball Screw Assemblies
Lube port**
L8
L5
D7
d0 ≤ 32
L 10
L9
D1 -0.1
90°
-0.05
D1
+0.7
D1
22.5°
D5
S
BB2
D
6
L3
L4
L
D7
d0 ≥ 40
D
S
w
L9
30°
90°
d0
d1
d2
30°
D
BB1
6
Note: On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
On a size 20x20 precision-rolled screw SN-R, d1 = 19 mm.
Dimensions (mm)
d1
d2
15.0
15.0
15.0
19.0
19.3
24.0
24.0
24.0
31.0
31.0
31.0
31.0
39.0
38.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
12.9
12.9
12.9
16.9
16.7
21.9
21.9
21.4
28.4
27.9
27.9
27.9
36.4
33.8
33.8
33.8
33.8
46.4
43.8
43.8
43.4
43.4
56.8
56.4
56.4
73.3
67.0
D1
f9
D5
28
28
28
36
36
40
40
40
50
50
50
50
63
63
63
63
63
75
75
75
75
75
90
95
95
105
125
48
48
48
58
58
62
62
62
80
80
80
80
93
93
93
93
93
110
110
110
110
110
125
135
135
145
165
Hole
pattern
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB2
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
D6
D7
38
38
38
47
47
51
51
51
65
65
65
65
78
78
78
78
78
93
93
93
93
93
108
115
115
125
145
5.5
5.5
5.5
6.6
6.6
6.6
6.6
6.6
9
9
9
9
9
9
9
9
9
11
11
11
11
11
11
13.5
13.5
13.5
13.5
Weight
L
L3
L4
L5
L8
38
45
61
40
77
45
64
95
48
77
84
120
54
70
75
88
142
54
90
105
132
149
90
132
149
95
170
15
15
15
15
20
20
20
25
20
20
20
20
25
25
25
25
40
25
30
30
30
30
30
30
30
30
50
10
15
20
10
25
10
16
30
10
16
25
40
10
16
25
25
45
10
16
25
25
45
16
25
45
16
25
11.5
15
23
12.5
28.5
12.5
22
35
14
28.5
32
50
14.5
22.5
25
31.5
51
14.5
30
37.5
51
59.5
30
51
59.5
32.5
60
7.1
11
10
7.1
12.5
9.5
10
14
9.7
12.5
12.5
12.5
12
11.8
12.5
16.5
25
12
14.1
15
20
18
14
20
18
14
24
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm
L9
44
44
44
51
51
55
55
55
71
71
71
71
81.5
81.5
81.5
81.5
81.5
97.5
97.5
97.5
97.5
97.5
110
117.5
117.5
127.5
147.5
L10
S**
m
(kg)
11.5
15
23
12.5
28.5
12.5
22
35
14
28.5
32
50
14.5
22.5
25
31.5
51
14.5
30
37.5
51
59.5
30
51
59.5
32.5
60
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
0.20
0.22
0.29
0.33
0.56
0.43
0.54
0.77
0.74
0.97
1.04
1.34
1.25
1.39
1.47
1.55
2.69
1.67
2.46
2.69
3.08
3.39
2.83
4.86
5.36
3.73
13.50
36
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Single Nut with Flange FEM-E-S
Standard series
Rexroth mounting dimensions
With standard seals
Reinforced seals, see Page 110
With backlash, reduced backlash,
preload 2%; 3%; 5%
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
FEM-E-S 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Size
A
A
B
A
A
B
A***
A
A***
A***
A
A***
A***
A***
A
A
A***
A***
A
B
A
C
B
B
A
B
C
B
B
C
C
C
C
8 x 2.5R x 1.588 - 3
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 2
20 x 5R x 3 - 4
20 x 20R x 3.5 - 2
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 2
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 32R x 3.969 - 2
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 2
50 x 5R x 3.5 - 5
50 x 10R x 6 - 6
50 x 16R x 6 - 6
50 x 20R x 6.5 - 3
50 x 40R x 6.5 - 2
63 x 10R x 6 - 6
63 x 20R x 6.5 - 3
63 x 40R x 6.5 - 2
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Part number
d0 x P x Dw - i
R1532 230 03
R1532 460 23
R1532 490 13
R1512 010 23
R1512 040 13
R1512 060 13
R1512 110 13
R1512 170 13
R1512 210 13
R1512 240 13
R1512 280 13
R1512 310 13
R1512 340 13
R1512 370 13
R1512 390 13
R1512 410 13
R1512 440 13
R1512 470 13
R1512 490 13
R1512 510 13
R1512 540 13
R1512 560 13
R1512 570 13
R1512 590 13
R1512 640 13
R1512 670 13
R1512 690 13
R1512 740 13
R1512 770 23
R1502 840 02
R1502 870 02
R1502 940 02
R1502 970 02
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Load ratings
dyn.
C
(N)
stat.
C0
(N)
Speed*
vmax.
[m/min]
2200
3800
2500
12300
9600
6300
14300
9100
15900
15700
10100
21600
31700
13500
13400
29100
50000
37900
25500
32000
79700
79400
47900
32100
88800
53200
36900
108400
262700
119500
295100
130600
326500
2800
5800
3600
16100
12300
7600
21500
12100
27200
27000
15100
40000
58300
21800
22000
64100
86400
62800
40300
81300
166500
166000
87900
55800
214300
112100
74300
291700
534200
371900
686400
468700
870400
15
30
60
30
60
96
30
120
30
60
150
23
47
94
150
19
38
75
150
15
30
48
60
120
24
48
95
19
30
10
20
8
16
*** Can be replaced in these sizes by FSZ-E-S
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
37
Precision Ball Screw Assemblies
BB4
BB3
Lube port**
at flange center
D7
L 10
BB5
D7
D7
S
S
L3
L4
0°
8x
9
4x
6x
BF1
60
°
45
°
D1 -0.05
-0.1
6
ϕ
D1
D
D6
ϕ
D5
S
ϕ
D6
L
BB6
Lube port
at flange center
D7
6°
10 x
3
d0
d1
d2
D1
D1
D6
ϕ
+0.7
S
D
w
L5
BF2
L3
L
L4
Note: On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
On a size 20x20 precision-rolled screw SN-R, d1 = 19 mm.
Dimensions (mm)
d1
d2
7.5
11.4
11.4
15.0
15.0
15.0
19.0
19.3
24.0
24.0
24.0
31.0
31.0
31.0
31.0
39.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
98.0
96.0
123.0
121.0
6.3
9.9
9.9
12.9
12.9
12.9
16.9
16.7
21.9
21.9
21.4
28.4
27.9
27.9
27.9
36.4
33.8
33.8
33.8
46.4
43.8
43.8
43.4
43.4
56.8
56.4
56.4
73.3
67.0
93.4
87.1
118.0
112.0
D1
g6
D5
16
24
24
28
28
33
33
38
38
38
48
48
48
56
56
56
63
63
72
68
72
72
85
85
85
95
95
105
125
125
145
150
170
30
40
40
53
53
58
58
63
63
63
73
73
73
80
80
80
95
95
110
98
110
110
125
125
125
140
140
150
180
180
200
210
230
Hole
pattern
BB4
BB4
BB4
BB3
BB3
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB5
BB5
BB5
BB5
BB6
Weight
D6
D7
Type
L
L3
L4
23
32
32
40
40
45
45
50
50
50
60
60
60
68
68
68
78
78
90
82
90
90
105
105
105
118
118
125
152
152
172
180
200
3.4
4.5
4.5
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
9
9
11
9
11
11
11
11
11
14
14
14
18
18
18
18
18
BF1
BF1
BF1
BF1
BF1
BF2
BF1
BF2
BF1
BF1
BF2
BF1
BF1
BF1
BF2
BF1
BF1
BF1
BF2
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
BF1
16
28
33
38
45
45
40
57
45
64
70
48
77
64
88
54
70
88
102
54
90
128
92
109
90
92
109
95
170
95
170
95
170
8
12
12
12
12
15
12
20
12
12
25
13
13
15
20
15
15
15
40
15
18
18
22
22
22
22
22
22
25
25
30
30
40
8
10
16
10
16
15
10
18.5
10
16
22.5
10
16
25
34
10
16
25
31
10
16
25
25
45
16
25
45
16
25
16
25
16
25
L5
–
–
–
–
–
15
–
18.5
–
–
22.5
–
–
–
34
–
–
–
31
–
–
–
–
–
–
–
–
–
–
–
–
–
–
L10
S**
ϕ
(°)
m
(kg)
8
16
21
26
33
–
28
–
33
52
–
35
64
49
–
39
55
73
–
39
72
110
70
87
68
70
87
73
145
70
140
65
130
4
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
30
330
330
315
315
30
30
30
30
30
18
30
30
30
30
30
30
30
19
30
30
30
30
30
30
30
30
30
22.5
22.5
22.5
22.5
18
0.05
0.12
0.14
0.24
0.25
0.39
0.28
0.60
0.35
0.44
1.09
0.54
0.72
1.02
1.40
0.71
1.29
1.54
3.59
1.02
2.02
2.58
3.40
3.87
2.62
3.71
4.21
3.78
11.00
5.46
14.50
7.49
19.00
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm. For size 8 x 2.5, a funnel-type lube nipple DIN 3405 is provided.
38
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Adjustable-Preload Single Nut SEM-E-S
Standard series
Rexroth mounting dimensions
With standard seals
Reinforced seals, see Page 110
Adjustable preload
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
With left-hand thread in some versions
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Size
B
B
C
B
C
B
A
B
A
A
B
A
A
A
B
B
A
B
A
B
A
A
B
B
B
B
B
C
C
C
B
8 x 2.5R x 1.588 - 3
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 2
20 x 5R x 3 - 4
20 x 20R x 3.5 - 2
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 2
32 x 5R x 3.5 - 4
32 x 5L x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 32R x 3.969 - 2
40 x 5R x 3.5 - 5
40 x 5L x 3.5 - 5
40 x 10R x 6 - 4
40 x 10L x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 2
50 x 5R x 3.5 - 5
50 x 10R x 6 - 6
50 x 20R x 6.5 - 3
50 x 40R x 6.5 - 2
63 x 10R x 6 - 6
63 x 20R x 6.5 - 3
63 x 40R x 6.5 - 2
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
Part number
d0 x P x Dw - i
R1532 230 04
R1532 460 24
R1532 490 14
R1512 010 24
R1512 040 14
R1512 060 14
R1512 110 14
R1512 170 14
R1512 210 14
R1512 240 14
R1512 280 14
R1512 310 14
R1552 310 04
R1512 340 14
R1512 370 14
R1512 390 14
R1512 410 14
R1552 410 04
R1512 440 14
R1552 440 04
R1512 470 14
R1512 490 14
R1512 510 14
R1512 540 14
R1512 570 14
R1512 590 14
R1512 640 14
R1512 670 14
R1512 690 14
R1512 740 14
R1512 770 24
Load ratings
dyn.
C
(N)
2200
3800
2500
12300
9600
6300
14300
9100
15900
15700
10100
21600
21600
31700
13500
13400
29100
29100
50000
50000
37900
25500
32000
79700
47900
32100
88800
53200
36900
108400
262700
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Speed*
stat.
C0
(N)
2800
5800
3600
16100
12300
7600
21500
12100
27200
27000
15100
40000
40000
58300
21800
22000
64100
64100
86400
86400
62800
40300
81300
166500
87900
55800
214300
112100
74300
291700
534200
vmax.
[m/min]
Centering diameter D1
after adjustment
(mm)
min.
max.
15
30
60
30
60
96
30
120
30
60
150
23
23
47
94
150
19
19
38
38
75
150
15
30
60
120
24
48
95
19
30
15.953
23.940
23.940
27.940
27.940
32.945
32.935
37.945
37.935
37.935
47.945
47.935
47.935
47.935
55.941
55.941
55.931
55.931
62.931
62.931
62.941
71.941
67.931
71.931
84.936
84.936
84.926
94.936
94.936
104.926
124.931
15.987
23.975
23.975
27.975
27.975
32.973
32.970
37.973
37.970
37.970
47.973
47.970
47.970
47.970
55.969
55.969
55.966
55.966
62.966
62.966
62.969
71.969
67.966
71.966
84.964
84.964
84.961
94.964
94.964
104.961
124.959
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
39
Precision Ball Screw Assemblies
Lube port** at flange center
Right
Left
S
°
60
-0.05
D1 -0.1
D1
+0.7
D1
D6
D6
D7
D7
L4
BB7
L
w
60
D
Note:
On a precision screw SN-F, the
root diameter d2 can be smaller
by max. 0.3 mm for manufacturing
reasons. On a size 20x20 precisionrolled screw SN-R, d1 = 19 mm.
L4
BB7
Dimensions (mm)
d1
d2
7.5
11.4
11.4
15.0
15.0
15.0
19.0
19.3
24.0
24.0
24.0
31.0
31.0
31.0
31.0
31.0
39.0
39.0
38.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
6.3
9.9
9.9
12.9
12.9
12.9
16.9
16.7
21.9
21.9
21.4
28.4
28.4
27.9
27.9
27.9
36.4
36.4
33.8
33.8
33.8
33.8
46.4
43.8
43.4
43.4
56.8
56.4
56.4
73.3
67.0
D1
f9
D5
16
24
24
28
28
33
33
38
38
38
48
48
48
48
56
56
56
56
63
63
63
72
68
72
85
85
85
95
95
105
125
30
40
40
53
53
58
58
63
63
63
73
73
73
73
80
80
80
80
95
95
95
110
98
110
125
125
125
140
140
150
180
Hole
pattern
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
d0
D6
9
L3
d2
S
D1
D5
Version for
8 x 2.5
R x 1.588–3
°
D7
ø6
3.4
BB7
d1
D5
ϕ
L3
60°
S
ϕ
L 10
L5
Weight
D6
D7
L
L3
L4
23
32
32
40
40
45
45
50
50
50
60
60
60
60
68
68
68
68
78
78
78
90
82
90
105
105
105
118
118
125
152
3.4
4.5
4.5
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
9
9
9
11
9
11
11
11
11
14
14
14
18
16
28
33
38
45
45
40
57
45
64
70
48
48
77
64
88
54
54
70
70
88
102
54
90
92
109
90
92
109
95
170
13
12
12
15
15
15
15
20
20
20
25
20
20
20
20
20
20
20
25
25
25
40
25
30
30
30
30
30
30
30
50
3
8
10.5
10
15
15
10
18.5
10
16
22.5
10
10
16
22
34
10
10
16
16
25
31
10
16
25
39.5
16
25
39.5
16
25
L5
L10
S**
ϕ
(°)
m
(kg)
0
8
10.5
11.5
15
15
12.5
18.5
12.5
22
22.5
14
14
28.5
22
34
17
17
22.5
22.5
31.5
31
14.5
30
31
39.5
30
31
39.5
32.5
60
3
8
10.5
11.5
15
15
12.5
18.5
12.5
22
22.5
14
14
28.5
22
34
17
17
22.5
22.5
31.5
31
14.5
30
31
39.5
30
31
39.5
32.5
60
4
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
0
55
55
53
180
50
56
60
60
60
48
60
59
168
60
60
65
65
57
57
180
49
67
61
180
60
65
190
70
67
60
0.06
0.12
0.13
0.24
0.25
0.42
0.31
0.63
0.44
0.53
1.13
0.64
0.64
0.87
1.14
1.44
0.87
0.87
1.53
1.53
1.77
3.77
1.23
2.44
3.94
4.42
2.94
4.45
4.95
4.2
13.3
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm. For size 8 x 2.5, a funnel-type lube nipple DIN 3405 is provided.
40
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Cylindrical Single Nut ZEM-E-S
Standard series
Rexroth mounting dimensions
With standard seals
Reinforced seals, see Page 110
With backlash, reduced backlash,
preload 2%; 3%; 5%
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
With left-hand thread in some versions
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
ZEM-E-S 20 x 5R x 3-5 1 2 T7 R 82Z120 41Z120 1250 1 0
Size
A
B**
A
B**
B
B**
A
C
B**
A
B**
B**
A
B**
B**
A
B**
A
B**
A
A
B
B
B
A
C
B
B
B
C
B**
B
B
B
B
B
C
C
C
8 x 2.5R x 1.588 - 3
12 x 2R x 1.2 - 4
12 x 5R x 2 - 3
12 x 5R x 2 - 3
12 x 10R x 2 - 2
12 x 10R x 2 - 2
16 x 5R x 3 - 4
16 x 5L x 3 - 4
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 10R x 3 - 3
16 x 10R x 3 - 3
16 x 16R x 3 - 2
16 x 16R x 3 - 2
16 x 16R x 3 - 3
20 x 5R x 3 - 5
20 x 5R x 3 - 4
20 x 20R x 3.5 - 2
20 x 20R x 3.5 - 3
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 2
25 x 25R x 3.5 - 3
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 20R x 3.969 - 3
32 x 32R x 3.969 - 2
32 x 32R x 3.969 - 3
40 x 5R x 3.5 - 5
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 2
40 x 40R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 6
50 x 20R x 6.5 - 3
63 x 10R x 6 - 6
Part number
d0 x P x Dw - i
R1532 230 02
R1532 422 01
R1532 460 32
R1532 462 25
R1532 490 22
R1532 492 00
R1512 010 22
R1552 010 02
R1512 012 67
R1512 040 12
R1512 042 08
R1512 042 09
R1512 060 12
R1512 062 10
R1512 062 11
R1512 110 12
R1512 112 43
R1512 170 12
R1512 172 07
R1512 210 12
R1512 240 12
R1512 280 12
R1512 280 52
R1512 310 12
R1512 340 12
R1512 370 12
R1512 370 52
R1512 390 12
R1512 390 52
R1512 410 12
R1512 412 21
R1512 440 12
R1512 470 12
R1512 490 12
R1512 490 52
R1512 510 12
R1512 540 12
R1512 570 12
R1512 640 12
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Load ratings
dyn.
C (N)
2200
2240
3800
3800
2500
2500
12300
12300
12300
9600
9600
9600
6300
6300
9600
17500
14300
9100
13300
15900
15700
10100
14700
21600
31700
13500
19700
13400
19500
29100
29100
50000
37900
25500
37000
32000
79700
47900
88800
stat.
C0 (N)
2800
4160
5800
5800
3600
3600
16100
16100
16100
12300
12300
12300
7600
7600
12300
27300
21500
12100
18800
27200
27000
15100
23300
40000
58300
21800
33700
22000
34000
64100
64100
86400
62800
40300
62300
81300
166500
87900
214300
Speed*
vmax.
[m/min]
15
12
30
30
60
60
30
30
30
60
60
60
96
96
96
30
30
120
120
30
60
150
150
23
47
94
94
150
150
19
19
38
75
150
150
15
30
60
24
** Special nuts for Rexroth modules and drive units
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
41
0.2 A
Precision Ball Screw Assemblies
Lube port
L 11
L6
A
B
D1
D4
T1
L7
d1
d2
D1
g6
D4
7.5
11.7
11.4
11.4
11.4
11.4
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
19.0
19.0
19.3
19.3
24.0
24.0
24.0
24.0
31.0
31.0
31.0
31.0
31.0
31.0
39.0
39.0
38.0
38.0
38.0
38.0
49.0
48.0
48.0
61.0
6.3
10.8
9.9
9.9
9.9
9.9
12.9
12.9
12.9
12.9
12.9
12.9
12.9
12.9
12.9
16.9
16.9
16.7
16.7
21.9
21.9
21.4
21.4
28.4
27.9
27.9
27.9
27.9
27.9
36.4
36.4
33.8
33.8
33.8
33.8
46.4
43.8
43.4
56.8
16
21
24
21
24
21
28
28
33
28
38
33
33
28
38
33
38
38
38
38
38
48
40
48
48
56
50
56
50
56
63
63
63
72
63
68
72
85
85
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
Dimensions (mm)
L
L6
± 0.1
16
19
28
28
33
33
35
35
45
45
54
45
45
45
61
45
40
64
77
45
64
80
95
48
77
64
84
88
120
54
70
70
88
113
142
54
90
92
90
5
5.5
8
8
10.5
10.5
14.5
14.5
14.5
14.5
19
14.5
14.5
14.5
22.5
14.5
21
22
28.5
14.5
22
30
37.5
14
28.5
22
32
34
50
17
25
25
34
46.5
61
17
35
30
29
L7
3.5
3.5
3.5
3.5
3.5
3.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
10.5
10.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
14
14
14
14
14
9.5
14
14
14
L11
+0.2
6
8
12
12
12
12
12
12
16
16
16
16
16
16
16
16
12
20
20
16
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
32
32
d0
d2
Note:
On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
On a size 20x20 precision-rolled screw SN-R, d1 = 19 mm.
d1
D
w
L
B
P9
T1
+0.1
Weight
m
(kg)
3
3
5
3
5
3
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
6
6
1.8
1.8
3
1.8
3
1.8
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3.5
3.5
0.02
0.03
0.06
0.04
0.07
0.05
0.09
0.09
0.17
0.12
0.35
0.20
0.20
0.12
0.42
0.16
0.21
0.34
0.44
0.19
0.28
0.73
0.50
0.32
0.50
0.74
0.66
1.03
0.97
0.44
0.82
0.88
1.13
2.23
1.85
0.62
1.34
2.39
1.59
42
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Double Nut with Flange FDM-E-C
Standard series
Mounting dimensions to
DIN 69 051, Part 5
Flange type C
With standard seals
Reinforced seals, see Page 110
With preload 7% or 10%
For precision-rolled screws SN-R of
tolerance grade T5, T7 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
FDM-E-C 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
C
B
B
A
A
A
B
A
B
B
B
B
A
B
C
B
B
C
B
C
C
C
C
Size
Part number
d0 x P x D w - i
16 x 5R x 3 - 4
20 x 5R x 3 - 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 10R x 6 - 6
40 x 20R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 4
50 x 10R x 6 - 6
50 x 20R x 6.5 - 5
63 x 10R x 6 - 4
63 x 10R x 6 - 6
63 x 20R x 6.5 - 5
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
R1502 010 55
R1502 110 75
R1502 210 75
R1502 240 75
R1502 310 75
R1502 340 76
R1502 410 76
R1502 440 75
R1502 440 76
R1502 470 75
R1502 510 76
R1502 540 75
R1502 540 76
R1502 570 76
R1502 640 75
R1502 640 76
R1502 670 76
R1502 740 76
R1502 770 46
R1502 840 56
R1502 870 56
R1502 940 56
R1502 970 56
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Load ratings
dyn.
C (N)
stat.
C0 (N)
Speed*
vmax.
[m/min]
12300
14300
15900
15700
21600
31700
29100
50000
72100
37900
32000
55400
79700
75700
61800
88800
83900
108400
262700
119500
295100
130600
326500
16100
21500
27200
27000
40000
58300
64100
86400
132200
62800
81300
109000
166500
149700
140500
214300
190300
291700
534200
371900
686400
468700
870400
30
30
30
60
23
47
19
38
38
75
15
30
30
60
24
24
48
19
30
10
20
8
16
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
43
Precision Ball Screw Assemblies
d0 ≤ 32
D7
Lube port** at flange center
L9
90°
D1 -0.2
D1
D5
22.5°
-0.04
S
L 10
BB2
D
6
L3
L4
L
d0 ≥ 40
D7
S
Dw
L9
90°
30°
d0
d1
d2
30°
BB1
D
6
Note:
On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
d1
15.0
19.0
24.0
24.0
31.0
31.0
39.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
98.0
96.0
123.0
121.0
d2
D1
g6
D5
Hole
pattern
12.9
16.9
21.9
21.9
28.4
27.9
36.4
33.8
33.8
33.8
46.4
43.8
43.8
43.4
56.8
56.8
56.4
73.3
67.0
93.4
87.1
118.0
112.0
28
36
40
40
50
50
63
63
63
63
75
75
75
75
90
90
95
105
125
125
150
150
170
48
58
62
62
80
80
93
93
93
93
110
110
110
110
125
125
135
145
165
165
202
202
222
BB2
BB2
BB2
BB2
BB2
BB2
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
BB1
D6
38
47
51
51
65
65
78
78
78
78
93
93
93
93
108
108
115
125
145
145
176
176
196
Dimensions (mm)
D7
L
L3
L4
5.5
6.6
6.6
6.6
9
9
9
9
9
9
11
11
11
11
11
11
13.5
13.5
13.5
13.5
17.5
17.5
17.5
10
10
10
16
10
16
10
16
16
25
10
16
16
25
16
16
25
16
25
16
25
16
25
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm
72
82
82
120
88
146
100
140
180
175
100
140
180
255
140
180
255
190
340
190
340
190
340
12
12
12
12
13
13
15
15
15
15
15
18
18
18
22
22
22
22
25
25
30
25
40
L9
44
51
55
55
71
71
81.5
81.5
81.5
81.5
97.5
97.5
97.5
97.5
110
110
117.5
127.5
147.5
147.5
178.5
178.5
198.5
L10
S**
Weight
m
(kg)
60
70
70
108
75
133
85
125
165
160
85
122
162
237
118
158
233
168
315
165
310
165
300
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
0.29
0.53
0.57
0.77
0.96
1.34
1.68
2.15
2.73
2.56
2.25
2.97
3.73
4.93
4
4.45
8.21
5.93
19.4
7.35
24.6
9.38
29.7
44
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Double Nut with Flange FDM-E-S
Standard series
Rexroth mounting dimensions
With standard seals
Reinforced seals, see Page 110
With preload 7% or 10%
For precision-rolled screws SN-R of
tolerance grade T5, T7 and precision
screws SN-F of tolerance grade P3, P5;
P1 upon request
d0
P
=
=
Dw =
i
=
nominal diameter
lead
(R = right-hand, L = left-hand)
ball diameter
number of ball track turns
Ordering code:
Category
FDM-E-S 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Size
C
B
B
A
A
A
B
A
B
B
B
B
A
B
C
B
B
B
B
C
C
C
C
16 x 5R x 3 - 4
20 x 5R x 3 - 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 10R x 6 - 6
40 x 20R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 4
50 x 10R x 6 - 6
50 x 20R x 6.5 - 5
63 x 10R x 6 - 4
63 x 10R x 6 - 6
63 x 20R x 6.5 - 5
80 x 10R x 6.5 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Part number
d0 x P x Dw - i
R1502 010 23
R1502 110 33
R1502 210 33
R1502 240 33
R1502 310 33
R1502 340 33
R1502 410 33
R1502 440 33
R1502 440 34
R1502 470 33
R1502 510 33
R1502 540 33
R1502 540 34
R1502 570 34
R1502 640 33
R1502 640 34
R1502 670 34
R1502 740 34
R1502 770 04
R1502 840 24
R1502 870 24
R1502 940 24
R1502 970 24
* See P. 99 Characteristic speed d0 · n and P. 120 Critical speed nk
Load ratings
dyn.
C (N)
stat.
C0 (N)
12300
14300
15900
15700
21600
31700
29100
50000
72100
37900
32000
55400
79700
75700
61800
88800
83900
108400
262700
119500
295100
130600
326500
16100
21500
27200
27000
40000
58300
64100
86400
132200
62800
81300
109000
166500
149700
140500
214300
190300
291700
534200
371900
686400
468700
870400
Speed*
vmax.
[m/min]
30
30
30
60
23
47
19
38
38
75
15
30
30
60
24
24
48
19
30
10
20
8
16
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
45
Precision Ball Screw Assemblies
Lube port** at flange center
BB3
L 10
BB4
D7
D7
S
S
45°
D
-0.04
4x
90
°
6x6
0°
D1 -0.2
D1
D5
D6
30°
6
L4
BB5
L
6
10 x
8x4
5°
d0
d1
D
18°
22.5°
6
S
D
d2
D7
S
Dw
BB6
D7
36°
L3
Note:
On a precision screw SN-F, the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
d1
15.0
19.0
24.0
24.0
31.0
31.0
39.0
38.0
38.0
38.0
49.0
48.0
48.0
48.0
61.0
61.0
61.0
78.0
76.0
98.0
96.0
123.0
121.0
d2
D1
g6
D5
Hole
pattern
12.9
16.9
21.9
21.9
28.4
27.9
36.4
33.8
33.8
33.8
46.4
43.8
43.8
43.4
56.8
56.8
56.4
73.3
67.0
93.4
87.1
118.0
112.0
28
33
38
38
48
48
56
63
63
63
68
72
72
85
85
85
95
105
125
125
145
150
170
53
58
63
63
73
73
80
95
95
95
98
110
110
125
125
125
140
150
180
180
200
210
230
BB3
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB5
BB5
BB5
BB5
BB6
Dimensions (mm)
D6
D7
L
L3
L4
L10
S**
Weight
m
(kg)
40
45
50
50
60
60
68
78
78
78
82
90
90
105
105
105
118
125
152
152
172
180
200
72
82
82
120
88
146
100
140
180
175
100
140
180
255
140
180
255
190
340
190
340
190
340
12
12
12
12
13
13
15
15
15
15
15
18
18
22
22
22
22
22
25
25
30
30
40
10
10
10
16
10
16
10
16
16
25
10
16
16
25
16
16
25
16
25
16
25
16
25
60
70
70
108
75
133
85
125
165
160
85
122
162
233
118
158
233
168
315
165
310
160
300
M6
M6
M6
M6
M6
M6
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
M8x1
0.33
0.45
0.53
0.70
0.84
1.22
1.13
2.25
2.83
2.66
1.60
2.74
3.39
6.71
3.53
4.32
8.65
6.35
20.20
8.19
24.50
10.80
31.00
6.6
6.6
6.6
6.6
6.6
6.6
6.6
9
9
9
9
11
11
11
11
11
14
14
18
18
18
18
18
** Lube port machining: flat surface L3 ≤ 13 mm, countersink L3 > 14 mm
46
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Nut Housing MGS
Nut housings MGS are
designed for FEM-E-S,
FDM-E-S and SEM-E-S
ball nuts
In addition to bolting, the housings
should be locked in place by positive
means (e.g. two pins with a diameter
equal to that of the screws).
We recommend using screws with a
strength class of 8.8.
Tightening torque
! see “Mounting” on Page 112.
Size
Part number
d0 x P
16x5
16x10
16x16
20x5
20x20
25x5
25x10
25x25
32x5
32x10
32x20
32x32
40x5
40x10
40x20
40x40
50x5
50x10
50x20
50x40
63x10
80x10
R1506 000 10
R1506 000 10
R1506 100 10
R1506 100 10
R1506 200 10
R1506 200 10
R1506 200 10
R1506 300 10
R1506 300 10
R1506 300 10
R1506 400 10
R1506 400 10
R1506 400 10
R1506 400 11
R1506 400 11
R1506 500 11
R1506 500 10
R1506 500 11
R1506 600 10
R1506 600 10
R1506 600 10
R1506 700 10
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
47
Precision Ball Screw Assemblies
T2
L
H
T1
S
S2
S1
D
1
H1
D6
E1
E2
B
A
N
4 x 90°
6x60°
30°
for size 16x5/16x10
Hole
Hole
pattern pattern
Weight
Dimensions (mm)
Clamping
length
BB3 / BB7
Hex socket
cap screw
BB4/BB7
D1
H8
D6
A1)
B1)
H
js7
H11)
E1
E2
N
S
S1
T1
S2
T2
FEM-E-S SEM-E-S
FDM-E-S
ISO 4762 L
(kg)
28
28
33
33
38
38
38
48
48
48
56
56
56
63
63
72
68
72
85
85
85
105
40
40
45
45
50
50
50
60
60
60
68
68
68
78
78
90
82
90
105
105
105
125
40
40
40
40
40
40
40
50
50
50
60
60
60
65
65
80
65
80
80
80
80
80
70
70
75
75
85
85
85
95
95
95
105
105
105
120
120
140
130
140
150
150
150
170
28
28
32
32
34
34
34
38
38
38
42
42
42
50
50
58
52
58
65
65
65
78
55
55
62
62
65
65
65
75
75
75
82
82
82
98
98
113
101
113
128
128
128
153
52± 0.1
52± 0.1
56± 0.1
56± 0.1
63± 0.1
63± 0.1
63± 0.1
72± 0.1
72± 0.1
72± 0.1
82± 0.1
82± 0.1
82± 0.1
93± 0.1
93± 0.1
108± 0.15
100± 0.15
108± 0.15
121± 0.15
121± 0.15
121± 0.15
140± 0.2
20± 0.1
20± 0.1
20± 0.1
20± 0.1
20± 0.1
20± 0.1
20± 0.1
26± 0.1
26± 0.1
26± 0.1
30± 0.1
30± 0.1
30± 0.1
35± 0.1
35± 0.1
46± 0.15
35± 0.15
46± 0.15
46± 0.15
46± 0.15
46± 0.15
46± 0.15
10
10
10
10
10
10
10
12
12
12
15
15
15
15
15
17
15
17
17
17
17
17
8.4
8.4
8.4
8.4
8.4
8.4
8.4
10.5
10.5
10.5
13
13
13
15
15
17
15
17
17
17
17
17
M10
M10
M10
M10
M10
M10
M10
M12
M12
M12
M16
M16
M16
M18
M18
M20
M18
M20
M20
M20
M20
M20
15
15
15
15
15
15
15
15
15
15
20
20
20
25
25
30
30
30
30
30
30
30
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8
M8
M10
M8
M10
M10
M10
M10
M12
10
10
10
10
10
10
10
10
10
10
12
12
12
14
14
18
14
18
18
18
18
20
BB3
BB3
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
BB4
0.85
0.85
1.05
1.05
1.25
1.25
1.25
1.8
1.8
1.8
2.5
2.5
2.5
3.7
3.7
6.3
4.1
6.3
7.3
7.3
7.3
9.4
1)
Tolerance grades to DIN 1685-GTB 16
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
BB7
M8
M8
M8
M8
M8
M8
M8
M10
M10
M10
M12
M12
M12
M14
M14
M16
M14
M16
M16
M16
M16
M16
44
44
51
51
54
54
54
61
61
61
64
64
64
79.5
79.5
92
82.5
92
107
107
107
132
48
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Nut Housing MGD
Nut housings MGD are
designed for FEM-E-C,
FDM-E-C and SEM-E-C
ball nuts
In addition to bolting, the housings
should be locked in place by positive
means (e.g. two pins with a diameter
equal to that of the screws).
We recommend using screws with
a strength class of 8.8.
Tightening torque
! see ”Mounting” on Page 112.
Reference edges are formed on both
sides.
Size
Part number
d0 x P
16x5
16x10
16x16
20x5
20x20
25x5
25x10
25x25
32x5
32x10
32x20
32x32
40x5
40x10
40x12
40x16
40x20
40x40
50x5
50x10
50x12
50x16
50x20
50x40
63x10
63x20
63x40
80x10
80x20
R1506 000 50
R1506 100 50
R1506 200 50
R1506 300 50
R1506 400 50
R1506 500 50
R1506 600 50
R1506 600 51
R1506 700 50
R1506 700 51
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
49
Precision Ball Screw Assemblies
2xB
S1
S
T2
H1
L
D
6
H
T1
H2
S2
B
D1
N
E2
E1
30°
90°
90°
A
Clamping
length
BB1
Hex
socket
cap
screw
BB2
ISO 4762
L
Dimensions (mm)
Hole
pattern
D1
H7
D6
A
B
H
H1
± 0.01 ± 0.01
28
38
50
35
24
48
36
47
55
37.5
28
40
51
55
40
50
65
70
63
78
75
90
H2
E1
E2
N
S
10
50± 0.1
20±0.1
20
56
10
55± 0.1
23±0.1
30
60
10
60± 0.1
50
35
70
10
80
60
42
84
93
95
70
48
108
100
75
55
95
115
100
80
105
125
125
145
100
100
85
95
S1
Weight
(kg)
T1
S2
T2
8.4 M10
15
M5
10
BB2
M8
37
0.91
22
8.4 M10
15
M6
11
BB2
M8
45
1.18
23±0.1
22
8.4 M10
15
M6
11
BB2
M8
49
1.33
75±0.1
30±0.1
27
13
M16
20
M8
14
BB2
M12
52
2.27
12
90± 0.1
35±0.1
31
15
M18
25
M8
17
BB1
M14
65.5
3.61
96
12
110±0.15 45±0.15 34
17
M20 30
M10
17
BB1
M16
75
5.63
110
15
120± 0.2 46±0.15 37
17
M20 30
M10
20
BB1
M16
89
6.72
58
116
15
130± 0.2 46±0.15 37
17
M20 30
M12
20
BB1
M16
95
7.67
63
73
126
146
15
15
140± 0.2 46±0.15 37
160± 0.2 46±0.15 37
17
17
M20 30
M20 30
M12
M12
20
22
BB1
BB1
M16
M16
105
125
8.60
10.53
50
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Precision-Rolled Screw SN-R
L ov
d0
d2
d1
Dw
Please state length in the “Inquiry/Order Form”.
Lov = overall length
Ordering code:
SN
20 x 5R x 3 X X T7 R 00T200 00T200 1250 1 0
Size
Part number
Part number
Part number
d0 x P x Dw
Tolerance
grade
T5
Tolerance
grade
T7
Tolerance
grade
T9
d1
(mm)
d2
(mm)
Moment
of inertia
Js
(kgcm2/m)
6x1Rx0.8
6x2Rx0.8
8x1Rx0.8
8x2Rx1.2
8 x2.5Rx1.588
12x2Rx1.2
12x5Rx2
12x10Rx2
16x5Lx3
16x5Rx3
16x10Rx3
16x16Rx3
20x5Rx3
20x40Rx3.5-4
20x20Rx3.5
25x5Rx3
25x10Rx3
25x25Rx3.5
32x5Rx3.5
32x5Lx3.5
32x10Rx3.969
32x20Rx3.969
32x32Rx3.969
40x5Rx3.5
40x5Lx3.5
40x10Rx6
40x10Lx6
40x12Rx6
40x16Rx6
40x20Rx6
40x40Rx6
50x5Rx3.5
50x10Rx6
50x12Rx6
50x16Rx6
50x20Rx6.5
50x40Rx6.5
63x10Rx6
63x20Rx6.5
63x40Rx6.5
80x10Rx6.5
R1531 105 00
R1531 125 00
R1531 205 00
R1531 225 00
R1531 235 00
R1531 425 00
R1531 465 10
R1531 495 00
R1551 015 00
R1511 015 00
R1511 045 00
R1511 065 10
R1511 115 00
R2521 150 00
R1511 175 10
R1511 215 00
R1511 245 00
R1511 285 10
R1511 315 00
R1551 315 00
R1511 345 10
R1511 375 10
R1511 395 10
R1511 415 00
R1551 415 00
R1511 445 00
R1551 445 00
R1511 455 00
R1511 465 00
R1511 475 00
R1511 495 10
R1511 515 00
R1511 545 00
R1511 555 00
R1511 565 00
R1511 575 10
R1511 595 10
R1511 645 00
R1511 675 10
R1511 695 10
R1511 745 00
R1531 107 00
R1531 127 00
R1531 207 00
R1531 227 00
R1531 237 00
R1531 427 00
R1531 467 10
R1531 497 00
R1551 017 00
R1511 017 00
R1511 047 00
R1511 067 10
R1511 117 00
R2521 170 00
R1511 177 10
R1511 217 00
R1511 247 00
R1511 287 10
R1511 317 00
R1551 317 00
R1511 347 10
R1511 377 10
R1511 397 10
R1511 417 00
R1551 417 00
R1511 447 00
R1551 447 00
R1511 457 00
R1511 467 00
R1511 477 00
R1511 497 10
R1511 517 00
R1511 547 00
R1511 557 00
R1511 567 00
R1511 577 10
R1511 597 10
R1511 647 00
R1511 677 10
R1511 697 10
R1511 747 00
R1531 109 00
R1531 129 00
R1531 209 00
R1531 229 00
R1531 239 00
R1531 429 00
R1531 469 10
R1531 499 00
R1551 019 00
R1511 019 00
R1511 049 00
R1511 069 10
R1511 119 00
R2521 190 00
R1511 179 10
R1511 219 00
R1511 249 00
R1511 289 10
R1511 319 00
R1551 319 00
R1511 349 10
R1511 379 10
R1511 399 10
R1511 419 00
R1551 419 00
R1511 449 00
R1551 449 00
R1511 459 00
R1511 469 00
R1511 479 00
R1511 499 10
R1511 519 00
R1511 549 00
R1511 559 00
R1511 569 00
R1511 579 10
R1511 599 10
R1511 649 00
R1511 679 10
R1511 699 10
R1511 749 00
6.0
6.0
8.0
8.0
7.5
11.7
11.4
11.4
15
15
15
15
19
19
19*
24
24
24
31
31
31
31
31
39
39
38
38
38
38
38
38
49
48
48
48
48
48
61
61
61
78
5.3
5.3
7.3
7.1
6.3
10.8
9.9
9.9
12.9
12.9
12.9
12.9
16.9
16.4
16.7
21.9
21.9
21.4
28.4
28.4
27.9
27.9
27.9
36.4
36.4
33.8
33.8
33.8
33.8
33.8
33.8
46.4
43.8
43.8
43.8
43.3
43.3
56.8
56.3
56.3
73.3
0.02
0.02
0.04
0.04
0.04
0.13
0.11
0.11
0.31
0.31
0.31
0.34
0.84
0.86
0.81
2.22
2.39
2.15
6.05
6.05
6.40
6.39
6.17
15.64
15.64
13.55
13.55
13.97
12.90
13.52
13.42
40.03
35.71
36.58
34.37
34.50
34.34
95.82
93.29
93.08
256.86
* The outer diameter d1 has been changed.
Maximum length
Stand- On
Weight
ard
request
(kg/m)
On request
1500
2500
2500
5000
4500
5000
4500
7500
4500
5000
4500
7500
0.19
0.19
0.36
0.36
0.30
0.79
0.75
0.74
1.24
1.24
1.23
1.29
2.03
2.06
1.99
3.31
3.43
3.25
5.45
5.45
5.60
5.60
5.50
8.78
8.78
8.15
8.15
8.27
7.95
8.14
8.11
14.05
13.25
13.41
13.00
13.01
12.98
21.72
21.42
21.40
35.58
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
51
Precision Ball Screw Assemblies
Friction-welded blanks made
of precision-rolled screws
SN-R
0.5 C
0.5 x 45°
Friction-welded
Friction-welded blanks consist of
– a precision-rolled screw part and
DR
– an unmachined spigot.
The spigot is fitted to the one end by
friction welding and is available in
various sizes.
C
LS
We have a solution to prevent problems
arising from big end bearing diameters
(e.g. visible thread grooves or axial contact faces which are too small for the
fixed bearing). Please ask.
LR
L ov
w
P
D
d0
Separate delivery of a screw without
end machining and without nut is not
possible.
Size
Tolerance
grade
d0 x P x Dw
6x1Rx0.8
6x2Rx0.8
8x1Rx0.8
8x2Rx1.2
8x2.5Rx1.588
12x2Rx1.2
12x5Rx2
12x10Rx2
16x5Rx3
16x10Rx3
16x16Rx3
20x5Rx3
20x20Rx3.5
25x5Rx3
25x10Rx3
25x25Rx3.5
32x5Rx3.5
32x10Rx3.969
32x20Rx3.969
32x32Rx3.969
40x10Rx6
40x20Rx6
50x10Rx6
50x20Rx6.5
Dimensions (mm)
DR
-1
LR
+2
Lov
LS
1100
1100
1250
1250
1700
1700
1700
1700
1160
1700
1700
1700
2050
2050
2050
2050
2300
2300
2300
2300
1000
1000
1100
1100
1500
1500
1500
1500
1000
1500
1500
1500
1800
1800
1800
1800
2000
2000
2000
2000
On request
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
T5
14.25
23.25
23.25
23.30
30.35
30.35
30.35
31.50
30.35
36.60
36.60
36.60
46.60
46.60
46.60
46.60
49.30
49.30
61.30
61.30
100
100
150
150
200
200
200
200
160
200
200
200
250
250
250
250
300
300
300
300
52
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Precision Screw SN-F
Part number
Part number
Part number
d0 x P x Dw
Tolerance
grade
P1
Tolerance
grade
P3
Tolerance
grade
P5
d1
(mm)
8 x 2.5R x 1.588
12 x 5R x 2
12 x 10R x 2
16 x 5R x 3
16 x 10R x 3
16 x 16R x 3
20 x 5R x 3
20 x 20R x 3.5
25 x 5R x 3
25 x 10R x 3
25 x 25R x 3.5
32 x 5R x 3.5
32 x 10R x 3.969
32 x 20R x 3.969
32 x 32R x 3.969
40 x 5R x 3.5
40 x 10R x 6
40 x 12R x 6
40 x 16R x 6
40 x 20R x 6
40 x 40R x 6
50 x 5R x 3.5
50 x 10R x 6
50 x 12R x 6
50 x 16R x 6
50 x 20R x 6.5
50 x 40R x 6.5
63 x 10R x 6
63 x 20R x 6.5
63 x 40R x 6.5
80 x 10R x 6.5
80 x 20R x 12.7
100 x 10R x 6.5
100 x 20R x 12.7
125 x 10R x 6.5
125 x 20R x 12.7
–
–
–
R1501 011 00
R1501 041 00
R1501 061 10
R1501 111 00
R1501 171 10
R1501 211 00
R1501 241 00
R1501 281 10
R1501 311 00
R1501 341 10
R1501 371 10
R1501 391 10
R1501 411 00
R1501 441 00
R1501 451 00
R1501 461 00
R1501 471 00
R1501 491 10
R1501 511 00
R1501 541 00
R1501 551 00
R1501 561 00
R1501 571 10
R1501 591 10
R1501 641 00
R1501 671 10
R1501 691 10
R1501 741 00
R1501 771 00
R1501 841 00
R1501 871 00
R1501 941 00
R1501 971 00
R1521 233 00
R1521 463 10
R1521 493 00
R1501 013 00
R1501 043 00
R1501 063 10
R1501 113 00
R1501 173 10
R1501 213 00
R1501 243 00
R1501 283 10
R1501 313 00
R1501 343 10
R1501 373 10
R1501 393 10
R1501 413 00
R1501 443 00
R1501 453 00
R1501 463 00
R1501 473 00
R1501 493 10
R1501 513 00
R1501 543 00
R1501 553 00
R1501 563 00
R1501 573 10
R1501 593 10
R1501 643 00
R1501 673 10
R1501 693 10
R1501 743 00
R1501 773 00
R1501 843 00
R1501 873 00
R1501 943 00
R1501 973 00
R1521 235 00
R1521 465 10
R1521 495 00
R1501 015 00
R1501 045 00
R1501 065 10
R1501 115 00
R1501 175 10
R1501 215 00
R1501 245 00
R1501 285 10
R1501 315 00
R1501 345 10
R1501 375 10
R1501 395 10
R1501 415 00
R1501 445 00
R1501 455 00
R1501 465 00
R1501 475 00
R1501 495 10
R1501 515 00
R1501 545 00
R1501 555 00
R1501 565 00
R1501 575 10
R1501 595 10
R1501 645 00
R1501 675 10
R1501 695 10
R1501 745 00
R1501 775 00
R1501 845 00
R1501 875 00
R1501 945 00
R1501 975 00
7.5
6.2
11.4
9.8
11.4
9.8
15
12.8
15
12.8
15
12.8
19
16.8
19.3
16.6
24
21.8
24
21.8
24
21.3
31
28.3
31
27.8
31
27.8
31
27.8
39
36.3
38
33.7
38
33.7
38
33.7
38
33.7
38
33.7
49
46.3
48
43.7
48
43.7
48
43.7
48
43.2
48
43.2
61
56.7
61
56.2
61
56.2
78
73.2
76
66.9
98
93.2
96
86.9
123
118.2
121
111.9
d2
(mm)
Moment
of inertia
Js
(kgcm2/m)
0.02
0.11
0.12
0.31
0.35
0.37
0.85
1.01
2.23
2.39
2.46
6.05
6.40
6.76
6.89
15.66
13.53
13.40
14.48
14.80
15.42
40.06
35.57
36.55
37.64
37.70
39.29
95.71
99.98
103.36
256.36
211.51
652.67
560.12
1574.25
1460.94
d0
Note: On a precision screw the root diameter d2 can be
smaller by max. 0.3 mm for manufacturing reasons.
Size
w
d2
Lov = overall length
d1
D
L ov
Maximum length
AvailOn
able at
request
short
notice
(kg/m)
800
800
800
1000
1000
1000
1200
1200
1500
1500
1500
3000
3000
3000
3000
4000
5000
5000
5000
5000
5000
4000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
0.30
0.75
0.73
1.24
1.31
1.34
2.03
2.22
3.31
3.43
3.48
5.45
5.60
5.76
5.83
8.78
8.14
8.27
8.43
8.52
8.71
14.05
13.24
13.40
13.60
13.61
13.91
21.71
22.18
22.57
35.54
32.16
56.74
52.44
90.02
84.73
1500
1500
1500
3000
3000
3000
3000
3000
5000
5000
5000
5000
5000
5000
5000
5000
8000
8000
8000
8000
8000
5000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
Weight
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
53
Precision Ball Screw Assemblies
Area of application
The precision screw SN-F is the solution
for high-precision applications.
Stocks
Note:
As a rule, precision screws SN-F
are manufactured to order complete
with end machining.
The part numbers given in the table refer
to per-meter lengths of screw without
end machining. We assign separate ID
numbers to screws with customer-specific end machining and mounted nut.
Separate delivery of a screw without
end machining and without nut is not
possible.
Screws of class P3 and P1 are supplied
as standard with a lead test report.
Precision screw SN-F “fixed
dimension lengths”
0.5 C
The number of standard sizes kept in
stock is increased in accordance with
the number of inquiries. Please ask.
0.5 x 45°
DE
We keep stocks of screws in standard
sizes and conventional lengths in case
you need delivery at extremely short
notice, e.g. for repairs, as samples or
for pre-series.
C
LS
Lov
P
d0
d1
d2
Please note that with very large end
bearing diameters (bigger than d2), the
thread grooves may remain partly visible.
Note: On a precision screw SN-F the root diameter d2 can
be smaller by max. 0.3 mm for manufacturing reasons.
54
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw End Form 00, end cut to size,
machining of end face
Z
Option (machining of end face)
Z
S
d0 x P
00
S
K
Ordering code:
SEM-E-S 20 x 5R x 3-4 X X T7 R 00Z200 82Z120 1250 1 0
Form
00
Version
060
080
120
160
200
250
320
400
500
630
800
Ball screw size
Centering
hole
Hex
socket
d0
P
Z
S
6
8
12
16
20
25
32
40
50
63
80
1/2
1/2/2.5
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
–
–
M3
M4
M6
M8
M10
M12
M16
M20
M20
–
–
4
5
8
10
12
14
17
17
17
None; ball entry zone rounded
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
55
Precision Ball Screw Assemblies
Screw End Form 00, end cut to size only “T”,
for separately delivered screw SN
Option (machining of end face)
d0 x P
T
00
Ordering code:
SN
20 x 5R x 3-4 X X T7 R 00T200 00T200 1250 0 0
Form Version
00
060
080
120
160
200
250
320
400
500
630
800
Ball screw size
d0
P
6
8
12
16
20
25
32
40
50
63
80
1/2
1/2/2.5
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
None; cut to size only,
not prepared for ball nut
mounting
56
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw End Form 01–02
Z
Option (machining of end face)
Undercut form E DIN 509
Z
Undercut form E DIN 509
Undercut for retaining ring DIN 471
S
S1
ST1
DT 2
D2
DT 1
D1
01
S
LS LST1
1
L6
K
None
Application
bT
b x l xt
02
L1
L2
L
Ordering code:
SEM-E-S 20 x 5R x 3-4 X X T7 R 02Z120 82Z120 1250 1 0
02
d0
P
L
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
2.5
19
2/5/10
24
5/10/16
32
5/20/40
38
5/20/40
39
5/10/25
45
5/10/20/32
58
5/10/20/32
69
5/10/12/16/20/40 70
5/10/12/16/20/40 82
10/20/40
107
10/20
109
5/10/16
32
5/20/40
38
5/20/40
39
5/10/25
45
5/10/20/32
58
5/10/20/32
69
5/10/12/16/20/40 70
5/10/12/16/20/40 82
10/20/40
107
10/20
109
Keyway
to DIN 6885
D1
DT1 L1
D2
DT2 L2
L6
S1
ST1
LS1
LST1 b
5
6
10
12
15
17
20
25
30
35
50
60
10
12
15
17
20
25
30
35
50
60
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
4
5
8
10
12
15
18
22
28
32
48
58
8
10
12
15
18
22
28
32
48
58
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
12
16
20
25
25
30
40
50
50
60
80
80
20
25
25
30
40
50
50
60
80
80
3.8
4.8
7.6
9.6
11.5
14.3
17.0
21.0
26.6
30.3
45.5
55.0
7.6
9.6
11.5
14.3
17.0
21.0
26.6
30.3
45.5
55.0
h10
h10
h10
h10
h11
h11
h11
h11
h12
h12
h12
h12
h10
h10
h11
h11
h11
h11
h12
h12
h12
h12
0.50
0.70
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
1.85
2.15
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
1.85
2.15
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13 2
H13 3
H13 4
H13 5
H13 6
H13 6
H13 8
H13 10
H13 14
H13 16
5
6
9
10
11
12
14
15
16
17
20
22
9
10
11
12
14
15
16
17
20
22
* The allocation of screw ends to the bearings is defined by the version.
14
18
23
28
28
33
44
54
54
65
87
87
23
28
28
33
44
54
54
65
87
87
bT l
P9
P9
P9
P9
P9
P9
P9
P9
P9
P9
14
20
20
25
28
36
36
40
63
63
Hex
socket
01
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
Dimensions (mm)
Centering
hole
Form Ver- Size
sion*
t
Z
S
1.2
1.8
2.5
3.0
3.5
3.5
4.0
5.0
6.0
6.0
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
4
4
4
5
6
10
10
17
17
4
4
4
5
6
10
10
17
17
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
57
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 01–02
Deep-groove ball bearing to DIN 625
Retaining ring to DIN 471
Form
01
02
Version
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
Size
Deep-groove ball bearing
to DIN 625
Retaining ring
to DIN 471
d0
P
Designation
Part number
Designation
Part number
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
5/10/16
5/20
5/20
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
625.2RS
626.2RS
6200.2RS
6201.2RS
6202.2RS
6203.2RS
6204.2RS
6205.2RS
6206.2RS
6207.2RS
6210.2RS
6212.2RS
6200.2RS
6201.2RS
6202.2RS
6203.2RS
6204.2RS
6205.2RS
6206.2RS
6207.2RS
6210.2RS
6212.2RS
R3414 048 00
R3414 043 00
R3414 049 00
R3414 042 00
R3414 074 00
R3414 050 00
R3414 038 00
R3414 063 00
R3414 051 00
R3414 075 00
R3414 077 00
R3414 078 00
R3414 049 00
R3414 042 00
R3414 074 00
R3414 050 00
R3414 038 00
R3414 063 00
R3414 051 00
R3414 075 00
R3414 077 00
R3414 078 00
4x0.4
5x0.6
8x0.8
10x1
12x1
15x1
18x1.2
22x1.2
28x1.5
32x1.5
48x1.75
58x2
8x0.8
10x1
12x1
15x1
18x1.2
22x1.2
28x1.5
32x1.5
48x1.75
58x2
R3410 765 00
R3410 742 00
R3410 737 00
R3410 745 00
R3410 712 00
R3410 748 00
R3410 723 00
R3410 714 00
R3410 752 00
R3410 753 00
R3410 718 00
R3410 728 00
R3410 737 00
R3410 745 00
R3410 712 00
R3410 748 00
R3410 723 00
R3410 714 00
R3410 752 00
R3410 753 00
R3410 718 00
R3410 728 00
58
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw End Form 11–12
Z
Option (machining of end face)
Undercut form F DIN 509
Z
Undercut form E DIN 509
S
G1
D1
11
D2
DT1
DT 2
Thread undercut DIN 76 short
S
None
K
bT
Application
b xlxt
12
L1
LG1
L2
L
Ordering code:
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 12Z120 41Z120 1250 1 0
12
100
120
170
200
250
300
301
350
400
500
100
120
170
200
250
300
301
350
400
500
Dimensions (mm)
Keyway
to DIN 6885
d0
P
L
D1
DT1
L1
D2
DT2
L2
G1
LG1
16
20
25
32
40
40
50
50
63
80
16
20
25
32
40
40
50
50
63
80
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5
10/20/40
10/20
48
60
75
88
126
101
130
118
132
160
48
60
75
88
126
101
130
118
132
160
10
12
17
20
25
30
30
35
40
50
10
12
17
20
25
30
30
35
40
50
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
18
23
23
26
54
25
54
32
44
52
18
23
23
26
54
25
54
32
44
52
8
10
15
18
22
28
28
32
38
48
8
10
15
18
22
28
28
32
38
48
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
20
25
30
40
50
50
50
60
60
80
20
25
30
40
50
50
50
60
60
80
M6x0.5
M10x1
M15x1
M17x1
M20x1
M25x1.5
M25x1.5
M30x1.5
M35x1.5
M40x1.5
M6x0.5
M10x1
M15x1
M17x1
M20x1
M25x1.5
M25x1.5
M30x1.5
M35x1.5
M40x1.5
10
12
22
22
22
26
26
26
28
28
10
12
22
22
22
26
26
26
28
28
* The allocation of screw ends to the bearings is defined by the version.
b
2
3
5
6
6
8
8
10
10
14
bT l
P9
P9
P9
P9
P9
P9
P9
P9
P9
P9
14
20
25
28
36
36
36
40
40
63
Hex
socket
11
Version* Size
Centering
hole
Form
t
Z
S
1.2
1.8
3
3.5
3.5
4
4
5
5
5.5
–
M3
M5
M5
M6
M8
M8
M10
M12
M16
–
M3
M5
M5
M6
M8
M8
M10
M12
M16
–
4
4
5
5
8
8
10
12
12
–
4
4
5
5
8
8
10
12
12
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
59
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 11–12
Angular-contact thrust ball bearing LGF
Angular-contact thrust ball bearing LGN
Form Version
11
12
100
120
170
200
250
300
301
350
400
500
100
120
170
200
250
300
301
350
400
500
Size
Slotted nut
NMZ
Angular-contact thrust ball bearing
Slotted nut
NMA
Slotted nut
d0
P
LGF
Designation
Part number
LGN
Designation
Part number
Designation Part number
16
20
25
32
40
40
50
50
63
80
16
20
25
32
40
40
50
50
63
80
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5
10/20/40
10/20
–
LGF-B-1255
LGF-B-1762
LGF-B-2068
LGF-C-2575
LGF-B-3080
LGF-C-3080
LGF-B-3590
LGF-B-40115
LGF-A-50140
LGF-B-1255
LGF-B-1762
LGF-B-2068
LGF-B-2575
LGF-B-3080
LGF-C-3080
LGF-B-3590
LGF-B-40115
LGF-A-50140
–
R3414 009 06
R3414 010 06
R3414 001 06
R3414 015 06
R3414 011 06
R3414 027 06
R3414 026 06
R3414 028 06
R3414 029 06
R3414 009 06
R3414 010 06
R3414 001 06
R3414 015 06
R3414 011 06
R3414 027 06
R3414 026 06
R3414 028 06
R3414 029 06
LGN-B-1034
LGN-B-1242
LGN-B-1747
LGN-B-2052
LGN-C-2557
LGN-B-3062
LGN-C-3062
LGN-B-3572
LGN-A-4090
LGN-A-50110
LGN-B-1034
LGN-B-1242
LGN-B-1747
LGN-B-2052
LGN-C-2557
LGN-B-3062
LGN-C-3062
LGN-B-3572
LGN-A-4090
LGN-A-50110
R3414 003 06
R3414 004 06
R3414 005 06
R3414 006 06
R3414 014 06
R3414 007 06
R3414 023 06
R3414 022 06
R3414 024 06
R3414 025 06
R3414 003 06
R3414 004 06
R3414 005 06
R3414 006 06
R3414 014 06
R3414 007 06
R3414 023 06
R3414 022 06
R3414 024 06
R3414 025 06
NMZ6x0.5
NMZ10x1
NMA15x1
NMA17x1
NMA20x1
NMA25x1.5
NMA25x1.5
NMA30x1.5
NMA35x1.5
NMA40x1.5
NMZ6x0.5
NMZ10x1
NMA15x1
NMA17x1
NMA20x1
NMA25x1.5
NMA25x1.5
NMA30x1.5
NMA35x1.5
NMA40x1.5
R3446 001 04
R3446 002 04
R3446 020 04
R3446 014 04
R3446 015 04
R3446 011 04
R3446 011 04
R3446 016 04
R3446 012 04
R3446 018 04
R3446 001 04
R3446 002 04
R3446 020 04
R3446 014 04
R3446 015 04
R3446 011 04
R3446 011 04
R3446 016 04
R3446 012 04
R3446 018 04
60
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw End Form 21
Z
Option (machining of end face)
Z
S
Undercut form E DIN 509
DT1
S
D1
21
K
L1
Application
Ordering code:
Hex
socket
21
Centering
hole
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 21Z120 82Z120 1250 1 0
Form
d0
P
D1
DT1
L1
Z
S
050
060
100
120
150
170
200
250
8
12
16
20
20
25
32
32
5
6
10
12
15
17
20
25
j6
j6
j6
j6
j6
j6
j6
j6
5
6
9
10
11
12
14
15
M3
M4
M5
M6
M6
M10
4
4
4
5
5
8
300
40
30
j6
16
M10
10
350
500
600
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5
10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
35
50
60
j6
j6
j6
17
20
22
M12
M16
M20
12
17
17
Version* Size
None
Dimensions (mm)
* The allocation of screw ends to the bearings is defined by the version.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
61
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 21
Bearing LAD*
Pillow block unit SEB-L
Form
21
Version
Size
Pillow block
unit SEB-L
Bearing
LAD*
d0
P
Part number
Part number
050
060
100
120
150
170
200
250
8
12
16
20
20
25
32
32
40
350
500
600
50
63
80
R1591 605 00
R1591 606 20
R1591 610 20
R1591 612 20
–
R1591 617 20
R1591 620 20
–
R1591 630 20
R1591 630 10
–
–
–
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
300
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5
10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
* Items delivered: 1 bearing, 2 retaining rings.
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
62
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 31
Z
Option (machining of end face)
Z
Undercut form E DIN 509
S
Undercut for retaining ring DIN 471 (3x)
LS1LST1
L4
31
None
K
D1DT1
S1 ST1
L4
S
Application
L5
L1
Ordering code:
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 31Z120 82Z120 1250 1 0
050
060
100
120
150
170
200
250
300
350
500
600
Size
Dimensions (mm)
Hex
socket
31
Version*
Centering
hole
Form
d0
P
D1
DT1
L1
L4
L5
S1
ST1
LS1
LST1
Z
S
8
12
16
20
20
25
32
32
40
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
5
6
10
12
15
17
20
25
30
35
50
60
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
22
26
39
43
47
51
60
64
68
73
87
95
5
6
9
10
11
12
14
15
16
17
20
22
20
24
36
40
44
48
56
60
64
68
80
88
4.8
5.7
9.6
11.5
14.3
16.2
19.0
23.9
28.6
33.0
47.0
57.0
h10
h10
h10
h11
h11
h11
h11
h12
h12
h12
h12
h12
0.70
0.80
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
2.15
2.15
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
–
–
M3
M4
M5
M6
M6
M10
M10
M12
M16
M20
–
–
4
4
4
5
5
8
10
12
17
17
* The allocation of screw ends to the bearings is defined by the version.
Note: Form 31 with double floating bearing increases the critical speed, see Page 120.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
63
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 31
Bearing LAD*
Pillow block unit SEC-L
Form
31
Version
050
060
100
120
150
170
200
250
300
350
500
600
Size
Pillow block
unit SEC-L
Bearing
LAD*
d0
P
Part number
Part number
8
12
16
20
20
25
32
32
40
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
–
–
–
–
R1594 615 00
–
R1594 620 00
–
R1594 630 00
–
–
–
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
* Items delivered per Bearing LAD: 1 bearing, 2 retaining rings.
Two sets are required for applications with Form 31.
64
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 41
Z
Option (machining of end face)
Z
S
Undercut form E DIN 509
Undercut for retaining ring DIN 471
L4
S
LS1LST1
None
D1
41
S1 ST1
DT1
K
Application
L1
Ordering code:
41
Hex
socket
Form
Centering
hole
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 41Z120 82Z120 1250 1 0
d0
P
D1
DT1
L1
L4
S1
ST1
LS1
LST1
Z
S
8
12
16
20
20
25
32
32
1/2/2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5
10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
5
6
10
12
15
17
20
25
j6
j6
j6
j6
j6
j6
j6
j6
7
8
12
13
14
15
18
19
5
6
9
10
11
12
14
15
4.8
5.7
9.6
11.5
14.3
16.2
19.0
23.9
h10
h10
h10
h11
h11
h11
h11
h12
0.70
0.80
1.10
1.10
1.10
1.10
1.30
1.30
H13
H13
H13
H13
H13
H13
H13
H13
–
–
M3
M4
M5
M6
M6
M10
Version* Size
050
060
100
120
150
170
200
250
300
40
350
500
600
50
63
80
Dimensions (mm)
–
–
4
4
4
5
5
8
30
j6
20
16
28.6
h12
1.6
H13
M10
10
35
50
60
j6
j6
j6
22
27
29
17
20
22
33.0
47.0
57.0
h12
h12
h12
1.60
2.15
2.15
H13
H13
H13
M12
M16
M20
12
17
17
* The allocation of screw ends to the bearings is defined by the version.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
65
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 41
Bearing LAD*
Pillow block unit SEB-L
Form
41
Version
Size
Bearing
LAD*
Pillow block
unit SEB-L
d0
P
Part number
Part number
050
060
100
120
150
170
200
250
8
12
16
20
20
25
32
32
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
300
40
350
500
600
50
63
80
1/2/2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5
10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
R1591 605 00
R1591 606 20
R1591 610 20
R1591 612 20
–
R1591 617 20
R1591 620 20
–
R1591 630 20
R1591 630 10
–
–
–
* Items delivered: 1 bearing, 2 retaining rings.
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
66
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 51–53
Z
Option (machining of end face)
Undercut form F DIN 509
Z
Thread undercut DIN 76 short
D1
51
G1
DT1
S
S
LG1
L1
K
None
Friction welded
∅12
Application
53
Only 8 x 2.5
max. 8
15
L
Ordering code:
51
53
Version*
Size
Dimensions (mm)
d0
P
L
060
100
120
170
200
250
12
16
20
25
32
40
24
6
30 10
35 12
45 17
48 20
80 25
300
40
301
350
400
500
060
50
50
63
80
8
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
2.5
D1
DT1 L1
G1
LG1 Z
h6
h6
h6
h6
h6
h6
M6x0.5
M10x1
M12x1
M17x1
M20x1
M25x1.5
10
12
12
22
22
26
14
18
23
23
26
54
–
M3
M4
M5
M6
M8
Hex
socket
Form
Centering
hole
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 51Z120 82Z120 1250 1 0
S
–
4
4
5
5
8
51 30
h6
25 M30x1.5
26
M10
10
80
60
72
84
24
h6
h6
h6
h6
h6
54
32
44
52
14
26
28
28
32
10
M10
M12
M16
M16
–
10
12
12
17
–
30
35
40
50
6
M30x1.5
M35x1.5
M40x1.5
M50x1.5
M6x0.5
* The allocation of screw ends to the bearings is defined by the version.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
67
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 51–53
Bearing LAF
Bearing LAN
Pillow block unit SEB-F
Form
51
53
Version
060
100
120
170
200
250
Size
Pillow block
unit
Bearing
d0
P
SEB-F
Part number
LAF
Part number
LAN
Part number
12
16
20
25
32
40
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
2.5
R1591 106 20
R1591 110 20
R1591 112 20
R1591 117 30
R1591 120 30
R1591 225 30
R1591 130 30
–
–
–
–
–
R1591 106 00
–
–
R1590 012 00
R1590 017 30
R1590 020 30
R1590 325 30
R1590 030 30
–
R1590 330 30
R1590 035 30
R1590 040 30
R1590 050 30
–
R1590 106 00
R1590 110 00
R1590 112 00
R1590 117 30
R1590 120 30
R1590 225 30
R1590 130 30
–
R1590 230 30
R1590 135 30
R1590 140 30
R1590 150 30
R1590 106 00
300
40
301
350
400
500
060
50
50
63
80
8
68
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 61–62
Option (machining of end face)
Z
Undercut form E DIN 509
Undercut for retaining ring DIN 471 (3x)
Z
Undercut form E DIN 509
ST1
DT2
S
S
D2
D1
61
LS1LST1
L4
S1
DT1
L4
K
None
Application
bT
b xlxt
62
L5
L2
L1
L
Ordering code:
Dimensions (mm)
d0 P
61
62
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
L
2.5
34
2/5/10
42
5/10/16
59
5/20/40
68
5/20/40
72
5/10/25
81
5/10/20/32
100
5/10/20/32
114
5/10/12/16/20/40118
5/10/12/16/20/40133
10/20/40
167
10/20
175
5/10/16
59
5/20/40
68
5/20/40
72
5/10/25
81
5/10/20/32
100
5/10/20/32
114
5/10/12/16/20/40118
5/10/12/16/20/40133
10/20/40
167
10/20
175
Keyway
to DIN 6885
D1 DT1 L1
D2
DT2 L2
L4
L5
S1
ST1 LS1 LST1 b
5
6
10
12
15
17
20
25
30
35
50
60
10
12
15
17
20
25
30
35
50
60
4
5
8
10
12
15
18
22
28
32
48
58
8
10
12
15
18
22
28
32
48
58
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
5
6
9
10
11
12
14
15
16
17
20
22
9
10
11
12
14
15
16
17
20
22
20
24
36
40
44
48
56
60
64
68
80
88
36
40
44
48
56
60
64
68
80
88
4.8
5.7
9.6
11.5
14.3
16.2
19.0
23.9
28.6
33.0
47.0
57.0
9.6
11.5
14.3
16.2
19.0
23.9
28.6
33.0
47.0
57.0
h10
h10
h10
h11
h11
h11
h11
h12
h12
h12
h12
h12
h10
h11
h11
h11
h11
h12
h12
h12
h12
h12
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
22
26
39
43
47
51
60
64
68
73
87
95
39
43
47
51
60
64
68
73
87
95
* The allocation of screw ends to the bearings is defined by the version.
12
16
20
25
25
30
40
50
50
60
80
80
20
25
25
30
40
50
50
60
80
80
0.70
0.80
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
2.15
2.15
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
2.15
2.15
bT l
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13 2 P9 14
H13 3 P9 20
H13 4 P9 20
H13 5 P9 25
H13 6 P9 28
H13 6 P9 36
H13 8 P9 36
H13 10 P9 40
H13 14 P9 63
H13 16 P9 63
Centering
hole
Form Ver- Size
sion*
Hex
socket
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 62Z120 51Z120 1250 1 0
t
Z
S
1.2
1.8
2.5
3
3.5
3.5
4
5
5.5
6
–
–
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
–
–
–
4
4
4
5
6
10
10
17
17
–
4
4
4
5
6
10
10
17
17
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
69
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 61–62
Bearing LAD*
Form
61
62
Version
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
Size
Bearing LAD*
d0
P
Part number
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
5/10/16
5/20
5/20
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
* Items delivered per bearing: 1 bearing, 2 retaining rings.
Two sets are required for applications with Form 61-62.
70
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 71–72
Z
Option (machining of end face)
Undercut form E DIN 509
Undercut for retaining ring DIN 471
Z
LS1LST1
L4
S
D2
S1
71
S
DT2
ST1
Undercut form E DIN 509
None
K
Application
bT
D1 DT1
b xlx t
72
L1
L2
L
Ordering code:
71
72
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
Dimensions (mm)
d0
P
L
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
2.5
19
2/5/10
24
5/10/16
32
5/20/40
38
5/20/40
39
5/10/25
45
5/10/20/32
58
5/10/20/32
69
5/10/12/16/20/40 70
5/10/12/16/20/40 82
10/20/40
107
10/20
109
5/10/16
32
5/20/40
38
5/20/40
39
5/10/25
45
5/10/20/32
58
5/10/20/32
69
5/10/12/16/20/40 70
5/10/12/16/20/40 82
10/20/40
107
10/20
109
Keyway
to DIN 6885
D1
DT1 L1
D2
DT2 L2
L4
S1
ST1 LS1
LST1 b
5
6
10
12
15
17
20
25
30
35
50
60
10
12
15
17
20
25
30
35
50
60
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
j6
4
5
8
10
12
15
18
22
28
32
48
58
8
10
12
15
18
22
28
32
48
58
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
5
6
9
10
11
12
14
15
16
17
20
22
9
10
11
12
14
15
16
17
20
22
4.8
5.7
9.6
11.5
14.3
16.2
19.0
23.9
28.6
33.0
47.0
57.0
9.6
11.5
14.3
16.2
19.0
23.9
28.6
33.0
47.0
57.0
h10
h10
h10
h11
h11
h11
h11
h12
h12
h12
h12
h12
h10
h11
h11
h11
h11
h12
h12
h12
h12
h12
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13
H13 2 P9 14
H13 3 P9 20
H13 4 P9 20
H13 5 P9 25
H13 6 P9 28
H13 6 P9 36
H13 8 P9 36
H13 10 P9 40
H13 14 P9 63
H13 16 P9 63
7
8
12
13
14
15
18
19
20
22
27
29
12
13
14
15
18
19
20
22
27
29
* The allocation of screw ends to the bearings is defined by the version.
12
16
20
25
25
30
40
50
50
60
80
80
20
25
25
30
40
50
50
60
80
80
0.70
0.80
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
2.15
2.15
1.10
1.10
1.10
1.10
1.30
1.30
1.60
1.60
2.15
2.15
bT l
Centering
hole
Form Version* Size
Hex
socket
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 72Z120 51Z120 1250 1 0
t
Z
S
1.2
1.8
2.5
3
3.5
3.5
4
5
5.5
6
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
M3
M3
M4
M5
M6
M8
M10
M12
M16
M20
4
4
4
5
6
10
10
17
17
4
4
4
5
6
10
10
17
17
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
71
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 71–72
Bearing LAD*
Form
71
72
Version
050
060
100
120
150
170
200
250
300
350
500
600
100
120
150
170
200
250
300
350
500
600
Size
Bearing LAD*
d0
P
Part number
8
12
16
20
20
25
32
32
40
50
63
80
16
20
20
25
32
32
40
50
63
80
2.5
2/5/10
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
5/10/16
5/20/40
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10/12/16/20/40
5/10/12/16/20/40
10/20/40
10/20
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
* Items delivered: 1 bearing, 2 retaining rings.
72
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 81–82
Z
Option (machining of end face)
Z
Undercut form F DIN 509
Thread undercut DIN 76 short
DT2
S
S
D2
D1
81
G1
DT1
Undercut form E DIN 509
K
None
bT
b xlx t
Application
82
L1
LG 1
L2
L
Ordering code:
81
82
Version* Size
Dimensions (mm)
Keyway
to DIN 6885
d0
P
L
D1
DT1
L1
D2
DT2
L2
G1
LG1
b
060
061
100
120
122
151
170
200
203
204
250
12
12
16
20
20
25
25
32
32
32
40
40
41
50
60
60
60
75
88
78
80
130
6
6
10
12
12
15
17
20
20
20
25
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
14
10
18
23
17
19
23
26
26
25
54
5
5
8
10
10
12
15
18
16
18
22
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
16
16
20
25
25
25
30
40
35
40
50
M6x0.5
M6x0.5
M10x1
M12x1
M12x1
M15x1
M17x1
M20x1
M20x1
M20x1
M25x1.5
10
15
12
12
18
16
22
22
17
15
26
300
40
101
30
h6
25
25
h7
50
M30x1.5
301
302
350
400
500
100
120
170
200
203
250
40
50
50
63
80
16
20
25
32
32
40
93
130
110
132
154
50
60
75
88
78
130
30
30
35
40
50
10
12
17
20
20
25
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
25
54
32
44
52
18
23
23
26
26
54
25
25
30
36
40
8
10
15
18
16
22
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
50
50
50
60
70
20
25
30
40
35
50
M30x1.5
M30x1.5
M35x1.5
M40x1.5
M50x1.5
M10x1
M12x1
M17x1
M20x1
M20x1
M25x1.5
300
40
101
30
h6
25
25
h7
50
M30x1.5
26
8
301
302
350
400
500
40
50
50
63
80
2/5/10
2/5/10
5/10/16
5/20/40
5
5/10
5/10/25
5/10/20/32
5/10/20/32
5/10
10/12/16/20/40
5
10/12/16/20/40
5/10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5/10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
93
130
110
132
154
30
30
35
40
50
h6
h6
h6
h6
h6
25
54
32
44
52
25
25
30
36
40
h7
h7
h7
h7
h7
50
50
50
60
70
M30x1.5
M30x1.5
M35x1.5
M40x1.5
M50x1.5
18
26
28
28
32
8
8
8
10
12
bT l
t
Hex
socket
Form
Centering
hole
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 82Z120 41Z120 1250 1 0
Z
S
M3
M3
M3
M4
M5
M6
M5
M5
M8
4
4
4
4
5
4
4
6
26
M10
8
18
26
28
28
32
12
12
22
22
17
26
M10 8
M10 8
M10 10
M12 12
M16 12
M3
M3
4
M5
4
M6
5
M5
4
M8
6
2
3
5
6
5
6
P9
P9
P9
P9
P9
P9
14
20
25
28
28
36
1.2
1.8
3
3.5
3
3.5
P9 36
4
M10
P9
P9
P9
P9
P9
4
4
4
5
5
M10 8
M10 8
M10 10
M12 12
M16 12
36
36
36
40
50
8
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
73
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 81–82
Pillow block unit SEC-F
Pillow block unit SEB-F
Bearing LAN
Bearing LAF
Bearing LAL
* The allocation of screw ends to the bearings is defined by the version.
Form
81
82
Version
Size
Pillow block unit
for motor attachment
SEB-F
d0
P
SEC-F
060
061
100
122
151
120
170
200
203
204
250
12
12
16
20
25
20
25
32
32
32
40
–
–
–
–
–
R1594 012 00
–
–
R1594 020 00
–
–
300
40
301
302
350
400
500
100
120
170
200
203
250
40
50
50
63
80
16
20
25
32
32
40
2/5/10
2/5/10
5/10/16
5
5/10
5/20/40
5/10/25
5/10/20/32
5/10/20/32
5/10
10/12/16/20/40
5
10/12/16/20/40
5/10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
5/10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
300
40
301
302
350
400
500
40
50
50
63
80
R1591 106 20
–
R1591 110 20
–
–
R1591 112 20
R1591 117 30
R1591 120 30
–
–
R1591 225 30
Bearing
LAF
LAN
LAL
–
–
–
–
–
R1590 012 00
R1590 017 30
R1590 020 30
R1590 020 00
–
R1590 325 30
R1590 1 06 00
–
R1590 1 10 00
–
–
R1590 1 12 00
R1590 1 17 30
R1590 1 20 30
R1590 1 20 00
–
R1590 2 25 30
–
R1590 406 00
–
R1590 412 00
R1590 415 00
–
–
–
–
R1590 420 00
–
–
R1591 130 30
R1590 030 30
R1590 1 30 30
–
R1594 030 00
–
–
–
–
–
R1594 012 00
–
–
R1594 020 00
–
–
–
–
–
–
R1591 110 20
R1591 112 20
R1591 117 30
R1591 120 30
–
R1591 225 30
R1590 030 00
R1590 330 30
R1590 035 30
R1590 040 30
R1590 050 30
–
R1590 012 00
R1590 017 30
R1590 020 30
R1590 020 00
R1590 325 30
R1590 130 00
R1590 230 30
R1590 135 30
R1590 140 30
R1590 150 30
R1590 110 00
R1590 112 00
R1590 117 30
R1590 120 30
R1590 120 00
R1590 225 30
–
–
–
–
–
–
–
–
–
–
–
–
R1591 130 30
R1590 030 30
R1590 130 30
–
R1594 030 00
–
–
–
–
–
–
–
–
–
R1590 030 00
R1590 330 30
R1590 035 30
R1590 040 30
R1590 050 30
R1590 130 00
R1590 230 30
R1590 135 30
R1590 140 30
R1590 150 30
–
–
–
–
–
74
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 83–84
Z
Option (machining of end face)
Z
Undercut form F DIN 509
Thread undercut DIN 76 short
Friction welded
S
Undercut form E DIN 509
DT2
D2
G1
D1
DF
DR
84
DT1
S
83
K
LF
LR
None
L ZF
Application
Ordering code:
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 83Z200 51Z120 1250 1 0
060
061
060
062
063
064
120
121
122
170
200
250
300
400
500
600
Size
Dimensions (mm)
Keyway
to DIN 6885
for form 84
Hex
socket
83/84
Version
Centering
hole
Form
d0
P
LZF
D1
DT1
L1
D2
DT2
L2
G1
LG1
b
bT
l
t
Z
S
6
6
8
8
8
8
12
12
16
16
20
25
32
40
50
63
all
1/2
all
1
2
2.5
all
5/10
5/10
all
all
all
all
all
all
all
40
41
40
41
41
41
60
60
60
75
88
102
101
132
154
155
6
6
6
6
6
6
12
12
12
17
20
25
30
40
50
60
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
h6
14
10
14
10
10
10
23
17
17
23
26
26
25
44
52
43
5
5
5
5
5
5
10
10
10
15
18
22
25
36
40
55
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
h7
16
16
16
16
16
16
25
25
25
30
40
50
50
60
70
80
M6x0.5
M6x0.5
M6x0.5
M6x0.5
M6x0.5
M6x0.5
M12x1
M12x1
M12x1
M17x1
M20x1
M25x1.5
M30x1.5
M35x1.5
M50x1.5
M60x2
10
15
10
15
15
15
12
18
18
22
22
26
26
28
32
32
3
4
6
6
8
10
12
16
P9
P9
P9
P9
P9
P9
P9
P9
20
20
28
36
36
40
50
63
1.8
2.5
3.5
3.5
4.0
5.0
5.0
6.0
M3
M3
M3
M5
M6
M8
M10
M12
M16
M20
4
4
4
4
5
6
8
12
12
17
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
75
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 83–84
Bearing LAF
Bearing LAN
Shown with
slotted nut NMA
Shown with
slotted nut NMZ
Bearing LAL
Form
83/84
Version
060
061
060
062
063
064
120
121
122
170
200
250
300
400
500
600
Size
Friction welding
Bearing
d0
P
DR
LR
DF
LF
LAF
LAN
LAL
6
6
8
8
8
8
12
12
16
16
20
25
32
40
50
63
all
1/2
all
1
2
2.5
all
5/10
5/10
all
all
all
all
all
all
all
12
12
12
12
12
12
16
15
15
23
25
32
40
50
63
82
15
15
15
15
15
15
15
15
15
15
15
15
20
20
20
25
5.2
5.2
6.2
7.2
6.9
6.2
9.5
9.5
12.5
12.5
16.5
21.0
28.0
33.5
43.5
56.0
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
–
–
–
–
–
–
–
–
–
R1590 017 30
R1590 020 30
R1590 325 30
R1590 030 30
R1590 040 30
R1590 050 30
none
R1590 106 00
–
R1590 106 00
–
–
–
R1590 112 00
–
–
R1590 117 30
R1590 120 30
R1590 225 30
R1590 130 30
R1590 140 30
R1590 150 30
none
–
R1590 406 00
–
R1590 406 00
R1590 406 00
R1590 406 00
–
R1590 412 00
R1590 412 00
–
–
–
–
–
–
–
76
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 91–92
Option (machining of end face)
None
K
Undercut form F DIN 509
Thread undercut DIN 76 short
DT2
D3
DT3
D2
D1
91
G1
DT1
Undercut form E DIN 509
bT
b xlxt
92
Application
L1
L2
LG1
L3
L
Ordering code:
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 92K120 41Z120 1250 1 0
Form
91
92
Version* Size
Dimensions (mm)
Keyway
to DIN 6885
d0
P
L
D1
DT1 L1
D2
DT2
L2
D3
DT3 L3
G1
LG1 b
060
100
120
170
200
250
12
16
20
25
32
40
50
60
75
90
103
145
6
10
12
17
20
25
h6
h6
h6
h6
h6
h6
5
8
10
15
18
22
h7
h7
h7
h7
h7
h7
16
20
25
30
40
50
4
4
6
6
6
6
h7
h7
h7
h7
h7
h7
M6x0.5
M10x1
M12x1
M17x1
M20x1
M25x1.5
10
12
12
22
22
26
300
40
301
350
400
500
100
120
170
200
250
50
50
63
80
16
20
25
32
40
300
40
301
350
400
500
50
50
63
80
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
14
18
23
23
26
54
10
10
15
15
15
15
116
30
h6
25
25
h7
50
6
h7
15
M30x1.5
26
145
125
147
169
60
75
90
103
145
30
35
40
50
10
12
17
20
25
h6
h6
h6
h6
h6
h6
h6
h6
h6
54
32
44
52
18
23
23
26
54
25
30
36
40
8
10
15
18
22
h7
h7
h7
h7
h7
h7
h7
h7
h7
50
50
60
70
20
25
30
40
50
6
6
6
6
4
6
6
6
6
h7
h7
h7
h7
h7
h7
h7
h7
h7
15
15
15
15
10
15
15
15
15
M30x1.5
M35x1.5
M40x1.5
M50x1.5
M10x1
M12x1
M17x1
M20x1
M25x1.5
26
28
28
32
12
12
22
22
26
2
3
5
6
6
116
30
h6
25
25
h7
50
6
h7
15
M30x1.5
26
8
145
125
147
169
30
35
40
50
h6
h6
h6
h6
54
32
44
52
25
30
36
40
h7
h7
h7
h7
50
50
60
70
6
6
6
6
h7
h7
h7
h7
15
15
15
15
M30x1.5
M35x1.5
M40x1.5
M50x1.5
26
28
28
32
8
8
10
12
* The allocation of screw ends to the bearings is defined by the version.
bT l
t
P9
P9
P9
P9
P9
1.2
1.8
3
3.5
3.5
14
20
25
28
36
P9 36
4
P9
P9
P9
P9
4
4
5
5
36
36
40
50
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
77
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 91–92
Bearing LAF
Shown with
slotted nut NMA
Bearing LAN
Pillow block unit SEB-F
Shown with
slotted nut NMZ
Form
91
92
Version
060
100
120
170
200
250
Size
Pillow block unit
Bearing
d0
P
SEB-F
Part number
LAF
Part number
LAN
Part number
12
16
20
25
32
40
2/5/10
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
5/10/16
5/20/40
5/10/25
5/10/20/32
10/12/16/20/40
5
10/12/16/20/40
10/12/16/20/40
5
10/20/40
10/20
R1591 106 20
R1591 110 20
R1591 112 20
R1591 117 30
R1591 120 30
R1591 225 30
R1591 130 30
–
–
–
–
–
R1591 110 20
R1591 112 20
R1591 117 30
R1591 120 30
R1591 225 30
R1591 130 30
–
–
–
–
–
–
–
R1590 012 00
R1590 017 30
R1590 020 30
R1590 325 30
R1590 030 30
–
R1590 330 30
R1590 035 30
R1590 040 30
R1590 050 30
–
R1590 012 00
R1590 017 30
R1590 020 30
R1590 325 30
R1590 030 30
–
R1590 330 30
R1590 035 30
R1590 040 30
R1590 050 30
R1590 106 00
R1590 110 00
R1590 112 00
R1590 117 30
R1590 120 30
R1590 225 30
R1590 130 30
–
R1590 230 30
R1590 135 30
R1590 140 30
R1590 150 30
R1590 110 00
R1590 112 00
R1590 117 30
R1590 120 30
R1590 225 30
R1590 130 30
–
R1590 230 30
R1590 135 30
R1590 140 30
R1590 150 30
300
40
301
350
400
500
100
120
170
200
250
50
50
63
80
16
20
25
32
40
300
40
301
350
400
500
50
50
63
80
78
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Screw Ends Form 93–94
Option (machining of end face)
K
None
Undercut form F DIN 509
Thread undercut DIN 76 short
Friction welded
Undercut form E DIN 509
bT
DT2
D3
DT3
G1
D2
94
D1
DF
DR
93
DT1
b xlx t
LF
LR
Application
L ZF
Ordering code:
SEM-E-S 20 x 5R x 3-4 1 2 T7 R 93K200 41Z120 1250 1 0
Form
93/94
Version
060
120
170
200
250
300
400
500
600
Size
Dimensions (mm)
Keyway
to DIN 6885
for form 94
d0
P
LZF
D1
DT1 L1
D2
DT2 L2
D3
DT3 L3
G1
LG1 b
bT
l
t
8
12
16
20
25
32
40
50
63
all
all
all
all
all
all
all
all
all
50
75
90
103
117
116
147
169
170
6
12
17
20
25
30
40
50
60
h6
h6
h6
h6
h6
h6
h6
h6
h6
5
10
15
18
22
25
36
40
55
h7
h7
h7
h7
h7
h7
h7
h7
h7
4
6
6
6
6
6
6
6
6
h7
h7
h7
h7
h7
h7
h7
h7
h7
M6x0.5
M12x1
M17x1
M20x1
M25x1.5
M30x1.5
M40x1.5
M50x1.5
M60x2
10
12
22
22
26
26
28
32
32
P9
P9
P9
P9
P9
P9
P9
P9
20
25
28
36
36
40
50
63
2.0
3.0
4.0
4.0
4.0
5.0
5.0
6.0
14
23
23
26
26
25
44
52
43
16
25
30
40
50
50
60
70
80
10
15
15
15
15
15
15
15
15
3
5
6
6
8
10
12
16
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
79
Precision Ball Screw Assemblies
End Bearings for Screw Ends Form 93–94
Bearing LAF
Pillow block unit SEB-F
Shown with
slotted nut NMA
Bearing LAN
Shown with
slotted nut NMZ
Form
Version
060
120
170
200
250
300
400
500
600
93/94
Form
93/94
Version
060
120
170
200
250
300
400
500
600
Size
Pillow block unit
d0
P
SEB-F
8
12
16
20
25
32
40
50
63
all
all
all
all
all
all
all
all
all
R1591 106 20
R1591 112 20
R1591 117 30
R1591 120 30
R1591 225 30
R1591 113 30
R1591 114 30
R1591 115 30
none
Size
Bearing
LAF
LAN
R1590 017 30
R1590 020 30
R1590 325 30
R1590 030 30
R1590 040 30
R1590 050 30
none
R1590 106 00
R1590 112 00
R1590 117 30
R1590 120 30
R1590 225 30
R1590 130 30
R1590 140 30
R1590 150 30
none
Friction welding
d0
P
DR
LR
DF
LF
8
12
16
20
25
32
40
50
63
all
all
all
all
all
all
all
all
all
12
16
23
25
32
40
50
63
82
15
15
15
15
15
20
20
20
25
6.2
9.5
12.5
16.5
21.0
28.0
33.5
43.5
56.0
8
8
8
8
8
8
8
8
8
80
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Pillow Block Unit SEC-F
Fixed bearing with angularcontact thrust ball bearing
LGF-B-…
The pillow block unit consists of:
– precision pillow block housing made
of aluminum with reference edges on
two sides
– angular-contact thrust ball bearing
LGF...
– slotted nut NMZ
The slotted nut is delivered unmounted.
Size
d0 x P
Pillow block unit Angular-contact thrust ball bearing
Part number
Load ratings (axial)
Dimensions (mm) Designation
dyn.
stat.
complete
C
C0
d
D
B
(N)
(N)
20x5/20/40
R1594 012 00
32x5/10/20/32
R1594 020 00
40x5/10/12/16/20/40 R1594 030 00
Screw end form 81/82 suitable for
motor mounting, see Page 72
17000
26000
29000
24700
47000
64000
81
82
12
20
30
55
68
80
25
28
28
LGF-B-1255
LGF-B-2068
LGF-B-3080
Slotted nut
MA
Designation
Weight
complete
(Nm)
(kg)
8.0
18.0
32.0
NMZ 12x1
NMZ 20x1
NMZ 30x1.5
1.49
1.88
2.75
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
81
Precision Ball Screw Assemblies
M2
Fastening thread S3 x T3
for motor flange
H3
H1
V2
H2
S3xT3
H4
d
D1
B
L4
D22
D
Centering diameter D
for motor flange
L 22 L 3
L2
V1
M1
L1
2xM1
L 20
B1
B3
B4
M3
B2
S1
S2
Dimensions (mm)
B1 B2
B3
B4
L1
L2
L3
L4
L20
L22
D1
D22 M1
M2
±0.015
60 10 40 20
60 10 40 20
65 12.5 40 20
42
40
45
42
58
73
15
18
20
18
20
20
60
78
93
25
35
50
55 10
68 16
80 25
72.5
72.5
90
80
103
116
M3
H1
H2
±0.015
H3
H4
S1
120
120
150
41
46
56
S2
S3
T3
V1
V2
81 28
91 28
111 33
10
10
10
10.5 9.7 M8 20 66 50
10.5 9.7 M8 20 90 46
13
11.7 M10 20 100 65
82
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Pillow Block Unit SEC-L
Floating bearing with deepgroove ball bearing to DIN 625
The pillow block unit consists of:
– precision pillow block housing made
of aluminum with reference edges on
two sides
– deep-groove ball bearing to
DIN 625... .2RS
– retaining ring to DIN 471
All parts are supplied unmounted.
Size
Pillow block unit
Part number
d0 x P
complete
20x5/20/40
32x5/10/20/32
40x5/10/12/16/20/40
R1594 615 00
R1594 620 00
R1594 630 00
Deep-groove ball bearing to DIN 625
Load ratings (radial) Dimensions (mm)
dyn.
stat.
C
C0
d
D
B
(N)
(N)
7800
3250
15
35
11
12700
5700
20
47
14
19300
9800
30
62
16
Suitable for screw ends: Form
31
Designation
Retaining ring
to
DIN 625…
DIN 471
6202.2RS
6204.2RS
6206.2RS
15x1
20x1.2
30x1.5
Weight
complete
(kg)
1.24
1.66
2.74
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
83
Precision Ball Screw Assemblies
d
D
D11
H 13
L 11
H 14
H11
H 12
M 12
M 11
2xM11
B
L 31
B11
B12
S11
M 13
B13
Dimensions (mm)
B11
B12
B13
L11
L31
D11
60
70
80
25
30
35
10
10
10
4
4
4
47
60
68
35
47
62
M11
±0.015
72.5
72.5
90
M12
M13
80
103
116
120
120
150
H11
±0.015
41
46
56
H12
H13
H14
S11
81
91
111
28
28
33
10
10
10
10.5
10.5
13
84
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Pillow Block Unit SEB-F
Fixed bearing with angularcontact thrust ball bearing
LGN-B-…
LGN-C-…
The pillow block unit consists of:
– precision pillow block housing with
reference edges on two sides
– angular-contact thrust ball bearing
LGN
– slotted nut NMA or NMZ
– housing nut GWR
The slotted nut is delivered unmounted.
Size
Pillow block unit
Part number
d0 x P
complete
6x1/2
8x1/2/2.5
12x2/5/10
16x5/10/16
20x5/20
R1591 106 00
R1591 106 00
R1591 106 20
R1591 110 20
R1591 112 20
R1591 117 20
R1591 117 30
R1591 120 20
R1591 120 30
R1591 225 30
R1591 130 20
R1591 130 30
R1591 135 30
R1591 230 30
R1591 140 30
R1591 150 30
25x5/10/25
32x5/10/20/32
40x10/12/16/20/40
40x5
50x5
50x10/12/16/20/40
63x10/20/40
80x10/20
Angular-contact thrust ball bearing
Load ratings (axial) Dimensions (mm)
dyn.
stat.
C
C0
d
D
B
(N)
(N)
6900
8500
6
24
15
6900
8500
6
24
15
6900
8500
6
24
15
13400
18800
10
34
20
17000
24700
12
42
25
LGN-B-0624
LGN-B-0624
LGN-B-0624
LGN-B-1034
LGN-B-1242
18800
LGN-B-1747
31000
17
47
25
Designation
26000
47000
20
52
28
LGN-B-2052
44500
111000
25
57
56
LGN-C-2557
29000
64000
30
62
28
LGN-B-3062
41000
47500
72000
113000
89000
127000
149000
250000
35
30
40
50
72
62
90
110
34
56
46
54
LGN-B-3572
LGN-C-3062
LGN-A-4090
LGN-A-50110
Suitable for screw ends: Form
For screws 8 x1/2/2.5: Form 53, 83, 93
51
81
91
82
92
Slotted nut
MA
Designation
Weight
complete
(Nm)
2.0
2.0
2.0
6.0
8.0
15.0
15.0
18.0
18.0
25.0
32.0
32.0
40.0
32.0
55.0
85.0
(kg)
0.38
0.38
0.38
0.87
1.12
1.65
1.69
1.93
2.03
5.13
2.64
2.77
4.66
7.04
10.49
15.61
NMZ 6x0.5
NMZ 6x0.5
NMZ 6x0.5
NMZ 10x1
NMZ 12x1
NMZ 17x1
NMA 17x1
NMZ 20x1
NMA 20x1
NMA 25x1.5
NMZ 30x1.5
NMA 30x1.5
NMA 35x1.5
NMA 30x1.5
NMA 40x1.5
NMA 50x1.5
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
85
Precision Ball Screw Assemblies
D1
d
D2
Lube port closed with
set screw DIN 913
Width across flats A/F
D
D3
H4
45°
∅5
LGN-B-…
with slotted nut NMZ
L3
H6
B4
B
S2
S3
A/F D1
M6
M6
M6
M10
M10
3.7
3.7
3.7
7.7
7.7
M12
9.7 4
d
D2
D1
B8
B3
∅5
D
D3
B5
B2
B4
B B7
LGN-C-…
with slotted nut NMA
2 x S3
∅P
4 x S1/S2
∅P
L4
B3
D1
d
B6
D2
2xM
B1
∅5
LGN-B-…
with slotted nut NMA
S2
M
B B7
D
D3
S3
B3
H5
V
H3
H2
H1
S1
B7
Dimensions (mm)
M
js7
31
31
31
43
47
L3 L4 H1
54
66 88 72 39 27
38
38
38
52
60
50
50
50
68
77
34
34
41
58
64
H2 H3
±0.02
18 13
18 13
22 13
32 22
34 22
H4 H5
H6
8 9 22
8 9 22
8 9 22
14 15 37
16 15 40
B1 B2 B3
32
32
32
37
42
16
16
16
23
25
8.5
8.5
8.5
8.5
8.5
18 18 45 46 29 10.5
B4
8.0
8.0
8.0
7.0
8.5
B5
B6
16.0
16.0
16.0
18.5
21.0
7.5
7.5
7.5
-
8.5 23.0
56
70 92 77 42 27
19 18 48 49 29 10.5 10.0 24.5
63
80 105 98 58 32
23 21 64 89 62 20.5 13.5 44.5
63
80 105 90 50 32
22 21 56 53 32 12.5 10.5 26.5
72
92 118 105
72
92 118 112
95
130 160 138
102.5 145 175 165
58
65
73
93
38
38
50
50
25
25
35
40
22
22
22
36
63
70
78
98
70
92
85
98
43
65
58
58
20.5
20.5
22.5
25.5
13.5
13.5
13.5
20
35
46
42.5
49
B7
8.5
8.5
8.5
8.5
8.5
B8
16
16.0
16
18.5
21
10.5 23
V
6
6
6
8
8
S1
H12
5.3
5.3
5.3
8.4
8.4
10 10.5
3
3
3
4
4
M26x1.5
M26x1.5
M26x1.5
M36x1.5
M45x1.5
D2
D3 P
16.5
16.5
16.5
22.0
28.0
18
18
18
27
32
36
M50x1.5 31.0 36
0.1
0.1
0.1
0.15
0.15
0.2
10.5 24.5 10 10.5
M12
9.7 4
M55x1.5 36.0 42 0.2
12.5 54.5 12 12.6
M14
9.7 4
M62x1.5 43.0 48 0.2
12.5 26.5 12 12.6
M14
9.7 4
M65x1.5 47.0 53 0.2
15.5
15.5
16.5
18.5
M14
M14
M14
M20
32.5
57.5
39.5
45.5
12
12
16
16
12.5
12.5
12.5
17.3
9.7
9.7
9.7
11.7
4
4
4
4
M78x2
M78x2
M95x2
M115x2
54
54
68
85
60
53
72
90
0.2
0.2
0.2
0.2
86
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Pillow Block Unit SEB-L
Floating bearing with deepgroove ball bearing to DIN 625
The pillow block unit consists of:
– precision pillow block housing with
reference edge on one side
– deep-groove ball bearing to
DIN 625-... .2RS
– retaining ring to DIN 471
– cover
All parts are supplied unmounted.
Size
d0 x P
8x1/2/2.5
12x2/5/10
16x5/10/16
20x5/20/40
25x5/10/25
32x5/10/20/32
40x5
40x10/12/16/20/40
50x5
50x10/12/16/20/40
63x10/20/40
80x10/20
Pillow block unit Deep-groove ball bearing to DIN 625
Part number
Load ratings (radial) Dimensions (mm)
dyn.
stat.
complete
C
C0
d
D
B
(N)
(N)
R1591 605 00
R1591 606 20
R1591 610 20
R1591 612 20
R1591 617 20
R1591 620 20
R1591 630 20
R1591 630 10
R1591 635 10
R1591 635 20
R1591 650 20
R1591 660 20
1900
2450
6000
6950
9500
12700
19300
19300
25500
25500
36500
52000
590
900
2240
2650
4150
5700
9800
9800
13200
13200
20800
31000
Suitable for screw ends: Form
For screws 12 x 2: Form 41
21
41
5
6
10
12
17
20
30
30
35
35
50
60
16
19
30
32
40
47
62
62
72
72
90
110
5
6
9
10
12
14
16
16
17
17
20
22
Designation
Retaining ring
Designation
DIN 625…
DIN 471
625.2RS
626.2RS
6200.2RS
6201.2RS
6203.2RS
6204.2RS
6206.2RS
6206.2RS
6207.2RS
6207.2RS
6210.2RS
6212.2RS
5x0.6
6x0.7
10x1
12x1
17x1
20x1.2
30x1.5
30x1.5
35x1.5
35x1.5
50x2
60x2
Weight
complete
(kg)
0.14
0.18
0.54
0.73
0.96
1.24
1.66
1.82
2.66
2.87
5.39
7.09
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
87
Precision Ball Screw Assemblies
L3
B B2
d
D1
H5
V
H3
H2
H1
S1
D
H4
45°
BD
S2
M
B1
L1
L4
Dimensions (mm)
L1
L3
L4
H1
62
62
86
94
108
112
126
126
144
144
190
205
38
38
52
60
66
70
80
80
92
92
130
145
50
50
68
77
88
92
105
105
118
118
160
175
34
41
58
64
72
77
90
98
105
112
138
165
H2
± 0.02
18
22
32
34
39
42
50
58
58
65
73
93
H3
H4
H5
B1
13
13
22
22
27
27
32
32
38
38
50
50
11
11
15
17
19
20
23
23
25
25
35
40
9
9
15
15
18
18
21
21
22
22
22
36
13
15
24
26
28
34
38
38
41
41
46
50
Cover
B2
M
js7
4
31
4.5
31
7.5
43
8
47
8
54
10
56
11
63
11
63
12
72
12
72
13
95
14 102.5
V
6
6
8
8
10
10
12
12
12
12
16
16
S1
H12
5.3
5.3
8.4
8.4
10.5
10.5
12.6
12.6
12.5
12.5
12.5
17.3
S2
M6
M6
M10
M10
M12
M12
M14
M14
M14
M14
M14
M20
D1
J6
16
19
30
32
40
47
62
62
72
72
90
110
BD
2.6
2.6
3.8
3.8
3.7
4.8
4.5
4.5
5
5
5
6
88
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Bearing LAF
Fixed bearing with angularcontact thrust ball bearing LGF
Double-thrust, screw-down,
Series LGF-B-…
LGF-A-…
Double-thrust, screw-down,
Series LGF-C-…
The fixed bearing consists of:
– angular-contact thrust ball bearing
LGF
– slotted nut NMA..., NMZ...
Size
Angular-contact
thrust ball bearing
with slotted nut
d0 x P
Part number
20x5/20/40
R1590 012 00
R1590 017 00
R1590 017 30
R1590 020 00
R1590 020 30
R1590 030 00
R1590 030 30
R1590 325 30
R1590 035 30
R1590 330 30
R1590 040 30
R1590 050 30
25x5/10/25
32x5/10/20/32
40x5
40x10/12/16/20/40
50x5
50x10/12/16/20/40
63x10/20/40
80x10/20
Single parts
Angular-contact thrust ball
bearing
Designation
Part number
LGF-B-1255
R3414 009 06
LGF-B-1762
R3414 01006
LGF-B-2068
R3414 001 06
LGF-B-3080
R3414 011 06
LGF-C-2575
LGF-B-3590
LGF-C-3080
LGF-B-40115
LGF-A-50140
R3414 015 06
R3414 026 06
R3414 027 06
R3414 028 06
R3414 029 06
Load ratings
Slotted nut
Designation
Part number
NMZ 12x1
NMZ 17x1
NMA 17x1
NMZ 20x1
NMA 20x1
NMZ 30x1.5
NMA 30x1.5
NMA 25x1.5
NMA 35x1.5
NMA 30x1.5
NMA 40x1.5
NMA 50x1.5
R3446 003 04
R3446 004 04
R3446 014 04
R3446 005 04
R3446 015 04
R3446 006 04
R3446 016 04
R3446 011 04
R3446 012 04
R3446 016 04
R3446 018 04
R3446 019 04
Suitable for screw ends: Form
11
51
12
81
91
82
92
dyn.
stat.
C
(N)
C0
(N)
17000
24700
18800
31000
26000
47000
29000
64000
44500 111000
41000
89000
47500 127000
72000 149000
113000 250000
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
89
Precision Ball Screw Assemblies
B
n.
0.3.
n
d3
mi
M6
d
da
Da
mi
R
t
LGF-B-…
with slotted nut NMZ
0.6
R
D
LGF-B-…
LGF-A-…
with slotted nut NMA
3
L
LGF-C-…
with slotted nut NMA
J
B
0.6.
n
mi
M6
0.3.
n
mi
d3
R
d
da
Da
D
t
R
L
3
J
Rigidity Rigidity
(axial) against
tilting
RaL
(N/µm)
Quantity
Dimensions (mm)
Bearing
friction
torque
with seal
MRL
(Nm)
Limit
speed
(grease)
Rkl
nG
(Nm/mrad) min-1
d
Toler- D
ance
Tolerance
B
Toler- J
ance
Mounting dimensions
Da
da
min. max. min. max.
L
n
0.16
375
50
3800
12
-0.010 55 -0.013
25
-0.25
42
30
33
16
29
17
3
0.24
450
80
3300
17
-0.010 62 -0.013
25
-0.25
48
34
37
23
33
17
3
0.3
650
140
3000
20
-0.010 68 -0.013
28
-0.25
53
40
43
25
39
19
4
0.5
850
300
2200
30
-0.010 80 -0.013
28
-0.25
63
50
53
40
49
19
6
0.60
0.60
0.75
1.3
2.6
1300
900
1500
1200
1400
450
400
620
750
1500
2600
2000
2200
1600
1200
25
35
30
40
50
-0.005 75
-0.010 90
-0.005 80
-0.010 115
-0.010 140
56
34
56
46
54
-0.05 58
-0.25 75
-0.50 63
-0.25 94
-0.25 113
45
59
50
71
88
48
62
53
80
100
32
45
40
56
63
44
58
49
70
87
47 8
25 4
47 12
36 12
45 12
-0.010
-0.013
-0.010
-0.013
-0.013
Weight
complete
d3
t
(°)
(kg)
6.8 120 0.385
0.485
6.8 120 0.520
0.645
6.8 90 0.740
0.855
6.8 60 0.980
6.5 45 1.600
8.8 90 1.360
6.5 30 1.760
8.5 30 2.500
10.5 30 5.130
90
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Bearing LAN
Fixed bearing with angularcontact thrust ball bearing LGN
Double-thrust,
Series LGN-B-…
LGN-A-…
Double-thrust, in pairs,
Series LGN-C-…
The fixed bearing consists of:
– angular-contact thrust ball bearing
LGN
– slotted nut NMA..., NMZ...
Size
Angular-contact
thrust ball bearing
with slotted nut
Single parts
Angular-contact thrust ball bearing
Slotted nut
Load ratings
dyn.
stat.
C
(N)
C0
(N)
d0 x P
Part number
Designation
Part number
Designation
Part number
6x1/2
R1590 106 00
LGN-B-0624
R3414 002 06
NMZ 6x0.5
R3446 001 04
6900
8500
8x1/2/2.5
R1590 106 00
LGN-B-0624
R3414 002 06
NMZ 6x0.5
R3446 001 04
6900
8500
12x2/5/10
R1590 106 00
LGN-B-0624
R3414 002 06
NMZ 6x0.5
R3446 001 04
6900
8500
16x5/10/16
R1590 110 00
LGN-B-1034
R3414 003 06
NMZ 10x1
R3446 002 04
13400
18800
20x5/20/40
R1590 112 00
R1590 117 00
R1590 117 30
R1590 120 00
R1590 120 30
R1590 130 00
R1590 130 30
R1590 225 30
R1590 135 30
R1590 230 30
R1590 140 30
R1590 150 30
LGN-B-1242
R3414 004 06
24700
R3414 005 06
18800
31000
LGN-B-2052
R3414 006 06
26000
47000
LGN-B-3062
R3414 007 06
29000
64000
LGN-C-2557
LGN-B-3572
LGN-C-3062
LGN-A-4090
LGN-A-50110
R3414 014 06
R3414 022 06
R3414 023 06
R3414 024 06
R3414 025 06
R3446 003 04
R3446 004 04
R3446 014 04
R3446 005 04
R3446 015 04
R3446 006 04
R3446 016 04
R3446 011 04
R3446 012 04
R3446 016 04
R3446 018 04
R3446 019 04
17000
LGN-B-1747
NMZ 12x1
NMZ 17x1
NMA 17x1
NMZ 20x1
NMA 20x1
NMZ 30x1.5
NMA 30x1.5
NMA 25x1.5
NMA 35x1.5
NMA 30x1.5
NMA 40x1.5
NMA 50x1.5
25x5/10/25
32x5/10/20/32
40x5
40x10/12/16/20/40
50x5
50x10/12/16/20/40
63x10/20/40
80x10/20
Suitable for screw ends: Form
For screws 8 x 2.5: Form 53, 83, 93
For screws 6 x 1; 6 x 2; 8 x 1; 8 x 2:
Form 83
11
51
12
81
91
82
92
44500 111000
41000
89000
47500 127000
72000 149000
113000 250000
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
91
Precision Ball Screw Assemblies
R
0.6.
n
mi
LGN-B-…
with slotted nut NMZ
0.3.
d
da
R
Da
D
LGN-B-…
LGN-A-…
with slotted nut NMA
n
mi
n.
mi
0.3 .
da
R
0.6
d
D
R
Da
B
LGN-C-…
with slotted nut NMA
n
mi
B
Dimensions (mm)
Bearing
friction
torque
with seal
MRL
(Nm)
Rigidity
(axial)
Rigidity
against
tilting
Limit
speed
(grease)
RaL
(N/µm)
Rkl
(Nm/mrad)
nG
min-1
Weight
complete
d
Tolerance
Tolerance
Mounting dimensions
Da
da
min. max. min. max.
(kg)
15
-0.25
16
19
9
15
0.040
-0.010
15
-0.25
16
19
9
15
0.040
24
-0.010
15
-0.25
16
19
9
15
0.040
14
24
0.110
0.215
0.248
0.290
0.345
0.440
0.465
0.590
0.840
0.740
0.980
1.250
2.930
D
Tolerance
B
24
-0.010
24
0.16
375
50
3800
12
+0.003
-0.005
+0.003
-0.005
+0.003
-0.005
+0.003
-0.005
-0.010
42
-0.011
25
-0.25
30
33
16
29
0.24
450
80
3300
17
-0.010
47
-0.011
25
-0.25
34
37
23
33
0.3
650
140
3000
20
-0.010
52
-0.013
28
-0.25
40
43
25
39
0.5
850
300
2200
30
-0.010
62
-0.013
28
-0.25
50
53
40
49
0.60
0.60
0.75
1.3
2.6
1300
900
1500
1200
1400
450
400
620
750
1500
2600
2000
2200
1600
1200
25
35
30
40
50
-0.005
-0.010
-0.005
-0.010
-0.010
57
72
62
90
110
-0.010
-0.013
-0.010
-0.013
-0.013
56
34
56
46
54
-0.05
-0.25
-0.50
-0.25
-0.25
45
59
50
71
88
48
62
53
80
100
32
45
40
56
63
44
58
49
70
87
0.04
200
8
6800
6
0.04
200
8
6800
6
0.04
200
8
6800
6
0.12
325
25
4600
10
34
-0.010
20
-0.25
25
28
92
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Bearing LAD
Floating bearing with
deep-groove ball bearing
The floating bearing consists of:
– deep-groove ball bearing to
DIN 625... .2RS
– retaining ring DIN 471 (2 pcs)
Size
d0 x P
8x1/2/2.5
12x2/5/10
16x5/10/16
20x5/20/40
25x5/10/25
32x5/10/20/32
40x5/10/12/16/20/40
50x5/10/12/16/20/40
63x10/20/40
80x10/20
Deep-groove ball
bearing with
retaining ring
Deep-groove ball bearing DIN 625 Retaining ring DIN 471
Part number
Designation
Part number
Designation
R1590 605 00
R1590 606 00
R1590 610 00
R1590 612 00
R1590 615 00
R1590 617 00
R1590 620 00
R1590 625 00
R1590 630 00
R1590 635 00
R1590 650 00
R1590 660 00
625.2RS
626.2RS
6200.2RS
6201.2RS
6202.2RS
6203.2RS
6204.2RS
6205.2RS
6206.2RS
6207.2RS
6210.2RS
6212.2RS
R3414 048 00
R3414 043 00
R3414 049 00
R3414 042 00
R3414 074 00
R3414 050 00
R3414 038 00
R3414 063 00
R3414 051 00
R3414 075 00
R3414 077 00
R3414 078 00
5x0.6
6x0.7
10x1
12x1
15x1
17x1
20x1.2
25x1.2
30x1.5
35x1.5
50x2
60x2
Suitable for screw ends: Form
For screws 8 x 1; 8 x 2: Form 41
Single parts
Load ratings
01
41
02
61
21
62
71
31
72
Part number
dyn.
C
(N)
stat.
C0
(N)
R3410 742 00
R3410 736 00
R3410 745 00
R3410 712 00
R3410 748 00
R3410 749 00
R3410 735 00
R3410 750 00
R3410 724 00
R3410 725 00
R3410 727 00
R3410 764 00
1900
2450
6000
6950
7800
9500
12700
14300
19300
25500
36500
52000
590
900
2240
2650
3250
4150
5700
6950
9800
13200
20800
31000
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
93
Precision Ball Screw Assemblies
Dimensions (mm)
d
D
B
5
6
10
12
15
17
20
25
30
35
50
60
16
19
30
32
35
40
47
52
62
72
90
110
5
6
9
10
11
12
14
15
16
17
20
22
Weight
complete
(kg)
0.005
0.008
0.030
0.035
0.043
0.064
0.106
0.125
0.195
0.288
0.453
0.783
d
D
B
94
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Bearing LAL
Fixed bearing with angularcontact thrust ball bearing LGL
Double-thrust, screw-down,
for low-cost constructions
The fixed bearing consists of:
– angular-contact thrust ball bearing
LGL
– slotted nut NMG..., NMZ...
Size
Angular- contact
thrust ball bearing
with slotted nut
Single parts
Angular-contact thrust ball bearing
do x P
Part number
Part number
Designation
6x1/2
8x1/2/2.5
12x2/5/10
12x5/10
16x5/10
20x5
25x5/10
32x5/10
R1590 406 00
R1590 406 00
R1590 406 00
R1590 412 00
R1590 412 00
R1590 412 00
R1590 415 00
R1590 420 00
R3414 038 06
R3414 038 06
R3414 038 06
R3414 040 06
R3414 040 06
R3414 040 06
R3414 041 06
R3414 042 06
LGL-D-0624
LGL-D-0624
LGL-D-0624
LGL-A-1244
LGL-A-1244
LGL-A-1244
LGL-A-1547
LGL-A-2060
Suitable for screw ends: Form
81
82
83
84
Slotted nut
Load ratings (axial)
dyn.
stat.
C
Co
(N )
(N)
1340
1340
1340
13200
13200
13200
16400
27500
1250
1250
1250
17900
17900
17900
22400
40000
Designation
Part number
NMZ 6x0.5
NMZ 6x0.5
NMZ 6x0.5
NMG 12x1
NMG 12x1
NMG 12x1
NMG 15x1
NMG 20x1
R3446 001 04
R3446 001 04
R3446 001 04
R3446 002 02
R3446 002 02
R3446 002 02
R3446 011 02
R3446 005 02
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
95
Precision Ball Screw Assemblies
D
d
m
A2
n
d2
B
ø 0.2
A1
H
A2
m
d
D
n
d2
ø 0.2
B
A1
H
Dimensions (mm)
Weight of bearing
d
D
+0.03
-0.01
A1
A2
n
m
H
B
6
6
6
12
12
12
15
20
20.5
20.5
20.5
35.45
35.45
35.45
38.45
50.45
24
24
24
44
44
44
47
60
35
35
35
50
50
50
51
60
15
15
15
32
32
32
35
47
26
26
26
38
38
38
39
47
13
13
13
22
22
22
24
30
12
12
12
20
20
20
22
28
d2
(kg)
4.5
4.5
4.5
6.6
6.6
6.6
6.6
6.6
0.023
0.023
0.023
0.12
0.12
0.12
0.14
0.30
-0.25
96
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Slotted Nuts and Housing Nuts
Slotted nuts NMA, NMZ and
NMG for fixed bearings
0.005 A
C
B
C
f
Slotted nut NMA
g
A
d
e
MA = tightening torque for slotted nut
FaB = axial breaking load of slotted nut
MAG = tightening torque for set screw
Designation
NMA 15x1
NMA 17x1
NMA 20x1
NMA 25x1.5
NMA 30x1.5
NMA 35x1.5
NMA 40x1.5
NMA 50x1.5
C
Section C-C
Part number
R3446 020 04
R3446 014 04
R3446 015 04
R3446 011 04
R3446 016 04
R3446 012 04
R3446 018 04
R3446 019 04
Dimensions (mm)
d
M15x1
M17x1
M20x1
M25x1.5
M30x1.5
M35x1.5
M40x1.5
M50x1.5
D
m
– for maximum vibratory loads
– for new designs
D
30
32
38
45
52
58
65
75
B
18
18
18
20
20
20
22
25
c
5
5
5
6
6
6
6
8
m
M5
M5
M6
M6
M6
M6
M6
M6
e
24
26
31
38
45
51
58
68
Slotted nut NMZ
f
4
4
4
5
5
5
6
6
g
5
5
6
6
7
7
8
8
B
– for existing designs
– for side drive with timing belt
– for driven nuts
MA
FaB
MAG
Weight
(Nm)
10
15
18
25
32
40
55
85
(kN)
100
120
145
205
250
280
350
450
(Nm)
3
3
5
5
5
5
5
5
(g)
60
70
130
160
200
230
300
430
B
C
0.005 A
t
A
m
D
d1
d
f
45°
b
Designation
NMZ 6x0.5
NMZ 10x1
NMZ 12x1
NMZ 17x1
NMZ 20x1
NMZ 30x1.5
NMZ 45x1.5
NMZ 55x2
NMZ 60x2
NMZ 70x2
NMZ 80x2
NMZ 90x2
Dimensions (mm)
d
D
B
d1
c
m
b
M6x0.5
M10x1
M12x1
M17x1
M20x1
M30x1.5
M45x1.5
M55x2
M60x2
M70x2
M80x2
M90x2
16
18
22
28
32
45
65
75
80
92
105
120
8
8
8
10
10
12
14
16
16
18
18
20
12
14
18
23
27
40
59
68
73
85
95
108
4
4
4
5
5
6
7
8
8
9
9
10
M4 3
M4 3
M4 3
M5 4
M5 4
M6 5
M6 6
M6 7
M6 7
M8 8
M8 8
M8 10
Set screw
Section B-B
e
Part number
R3446 001 04
R3446 002 04
R3446 003 04
R3446 004 04
R3446 005 04
R3446 006 04
R3446 032 04
R3446 033 04
R3446 031 04
R3446 034 04
R3446 035 04
R3446 036 04
0.5
B
MA = tightening torque for slotted nut
FaB = axial breaking load of slotted nut
MAG = tightening torque for set screw
g
MA
FaB
MAG
Weight
(Nm)
(kN)
(Nm)
(g)
1
1
1
3
3
5
5
5
5
15
15
15
10
10
15
28
35
75
170
230
250
360
460
700
t
e
f
g
2
2
2
2
2
2
2.5
3
3
3.5
3.5
4
11
14
17
22.5
26
37.5
–
–
–
–
–
–
2.5
2.5
2.5
3
3
4
–
–
–
–
–
–
3.5
2
3.5
6
3.5
8
4
15
4
18
5
32
–
65
–
95
–
100
–
130
–
160
–
200
17
31
38
57
69
112
181
229
255
305
355
410
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
97
Precision Ball Screw Assemblies
Slotted nut NMG
B
Polyamide
insert
b
D
d1
d
– for low-cost constructions
a
min. 0.3
MA = tightening torque of slotted nut
Designation
Part number
Dimensions (mm)
NMG 12x1
NMG 15x1
NMG 20x1
d
R3446 002 02 M12x1
R3446 011 02 M15x1
R3446 005 02 M20x1
D
21
24
32
B
7.6
8.6
9.6
d1
18
21
27
a
18
21
27
b
3
4
4
MA
Weight
(Nm)
8
10
18
(g)
10
13
24
Housing nut GWR
0.01 A
A
A
B
g
f
– for angular-contact thrust ball
bearing LGN
– for single cylindrical nut ZEM-E-S
Use locking agent (e.g. Loctite 638) to
secure against loosening.
A
Designation
GWR 18x1
GWR 23x1
GWR 26x1.5
GWR 30x1.5
GWR 36x1.5
GWR 40x1.5
GWR 45x1.5
GWR 50x1.5
GWR 55x1.5
GWR 58x1.5
GWR 60x1
GWR 62x1.5
GWR 65x1.5
GWR 70x1.5
GWR 78x2
GWR 92x2
GWR 112x2
Part number
R1507 040 33
R1507 240 35
R1507 240 22
R1507 340 34
R1507 040 23
R1507 140 03
R1507 240 04
R1507 240 25
R1507 340 05
R1507 440 32
R1507 440 28
R1507 440 29
R1507 440 26
R1507 440 06
R1507 540 07
R1507 640 09
R1507 740 11
e
D
d
Note:
Section A-A
Dimensions (mm)
Weight
D
d
B
e
f
g
(g)
M18x1
M23x1
M26x1.5
M30x1.5
M36x1.5
M40x1.5
M45x1.5
M50x1.5
M55x1.5
M58x1.5
M60x1
M62x1.5
M65x1.5
M70x1.5
M78x2
M92x2
M112x2
8.5
13
16.5
17
22
25
28
31
36
43
43
43
47
42
52
65
82
8
8
8
8
8
8
8
10
10
10
10
12
12
12
15
16
18
12.5
18
20.5
23
29
33
38
40
46
50
51
53
55
58
67
82
100
2.5
2.5
2.5
3
3
3
3
4
4
4
4
5
4
4
6
6
8
3
3
3
4
4
4
4
5
5
5
5
6
5
5
7
7
8
10
15
16.5
29
35
39.5
55
86
96
84
97
127
136
216
286
385
596
98
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Technical Notes
DIN 69 051, Part 1 defines a
ball screw as follows:
Advantages over the Acme
screw drive
– The mechanical efficiency of an Acme
screw drive is a maximum 50%,
whereas a ball screw can reach a
mechanical efficiency of up to 98%.
– Higher life expectancy due to
negligible wear during operation
– Less drive power required
– No stick-slip effect
– More precise positioning
– Higher travel speed
– Less heat-up
100
05
90
Efficiency (%)
An assembly comprising a ball screw
shaft and a ball nut and which is capable
of converting rotary motion into linear
motion and vice versa. The rolling
elements of the assembly are balls.
µ=
80
0.0
µ=
70
Precision Ball Screw
Assembly
.01
0
60
50
40
µ=
30
µ=
We recommend that a safety nut be
installed for particularly critical applications in vertical set-ups. Please ask.
0.3
Acme screw
20
10
0
0
1
2
3
4
5
6
7
8
9
Lead angle (°)
Due to their high mechanical efficiency,
ball screws are in principle not selflocking.
Safety information
0. 2
Selection criteria for ball
screws
The following factors should be considered when selecting the ball screw
for a given application:
– degree of accuracy required
(lead deviation)
– in-service load conditions
– service life
– critical speed
– buckling load
– rigidity/permissible clearance or
desired preload
– characteristic speed (max. permissible linear speed)
The following points should be taken into
consideration when selecting a ball
screw assembly that is to be both costefficient and optimally designed:
– The lead is a decisive factor for the
load-carrying capacity (depending on
the maximum possible ball diameter)
and the drive torque.
– The calculation of the service life
should be based on average loads
and average speeds, not on maximum
values.
– In order for us to provide you with a
customized solution, installation drawings or sketches of the nut environment should be enclosed with your
inquiry.
Note:
Radial and eccentric forces relative to
the screw must be avoided as they have
a negative effect on the life and proper
function of the ball screw.
Where special conditions of operation
are involved, please ask.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
99
Precision Ball Screw Assemblies
Load-carrying capacities and
service life
We calculate load-carrying capacities
and service life in accordance with
DIN 69 051, Part 4 and ISO 3408-4
(P5).
Basic static load rating C0
The static load rating is an axial, concentrically acting force that induces a permanent deformation of 0.0001 x the ball
diameter between the ball and the ball
raceway.
Basic dynamic load rating C
The dynamic load rating is an axial,
concentrically acting force of constant
magnitude and direction under which
90% of a sufficiently large amount of
identical ball screws can achieve a nominal service life of one million revolutions.
Service life
The nominal life is expressed by the
number of revolutions (or number of
operating hours at constant speed) that
will be attained or exceeded by 90% of
a representative sample of identical ball
screws before the first signs of material
fatigue become evident. The nominal life
is designated as L or Lh, depending on
whether it is specified in revolutions or
hours.
Characteristic speed d0 · n
Sealing
Rexroth ball screws can be operated at
very high speeds due to their internal
ball recirculation system. Characteristic
speeds of up to 150 000 are possible
depending on the nut type.
Ball screws are precision assemblies
that require protection against contamination. Flat protective covers and
bellows type dust boots or the drive unit
AGK are particularly suitable for this
purpose. As there are many applications
in which these methods do not provide
sufficient protection, we have developed
a gapless lip-type seal which ensures an
optimal sealing effect and maintains high
efficiency due to the low friction level.
Our ball screws are therefore supplied
with seals in their standard versions. At
the customer’s request, these seals can
be omitted or special seals used in their
place. A reinforced version of the standard seal has been developed for those
applications where heavy contamination
of the screw appears inevitable. The
sealing effect has been improved further
by increasing the preload. What must be
borne in mind is the significantly higher
friction torque in comparison with the
standard friction torque (see Technical
Data) and the associated increased heat
build-up. The reinforced seal can be
easily recognized externally by its dark
green color.
d0 . n ≤ 150 000
= nominal diameter (mm)
d0
n
= speed (min-1)
The theoretically possible maximum
linear speed v max (m/min) is specified
on the page featuring the relevant nut.
Actually attainable speeds are heavily
dependent among other factors on preload and duty cycle. They are generally
restricted by the critical speed. (See
Page 120)
Material, hardness
Our standard ball screw assemblies
are made of high-quality, heat-treatable
steel, carbon chrome alloy steels or
case-hardened steels. The screw and
nut raceways have a minimum Rockwell
hardness of HRC 60. Ball screw assemblies made of corrosion-resistant steel
(DIN 17230, EN 10088) are also available upon request. Unless otherwise
specified, the screw ends are not
hardened.
Permissible operating
temperatures
Ball screws are suitable for continuous
operation at temperatures up to 80°C
with temporary peaks of 100°C (measurements taken on the outer shell of
the nut).
Short stroke
Critical speed and buckling
load
The critical speed and buckling load can
be checked using the corresponding
charts. For precise calculations see
formula 12 15
! see “Design Calculation” on Pages
118 and following.
Short stroke limit (load rating reduced by less than 10%)
400
Stroke (travel) [mm]
During a short stroke, the ball does not
make a real turn. It is therefore impossible for an adequate lubricating film to
form. This may result in premature wear.
In the chart, the minimum required stroke
(travel) for a 10% lower load rating is
shown as a function of the number of
turns and lead of the nut. Hence the
most favorable range lies above each
curve. It may help to have occasional
longer strokes, which are performed with
simultaneous relubrication as “lubricating
strokes”. If in doubt, please ask.
40
350
Lead
300
25
32
20
16
250
12
200
10
150
100
5
50
2.5
0
1
2
3
4
5
Number of ball track turns in the nut i
6
100
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Acceptance Conditions and Tolerance Grades
P
Ball screw with precision screw SN-F (SN-R)
l1
Many values are significantly more
accurate than those defined in
DIN 69 051, Part 3 and ISO 3408-3
le
lu
l0
–
+
300
ep
ep
ν 2π p
ν up
c
ν 300p
l0
le
(Standard: c = 0)
in accordance with DIN 69 051, Part 3
and ISO 3408-3
Standard: c = 0
Permissible travel deviation
ν up
2πrad
lu
>
0
100
200
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
P
≤
100
200
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
1
6
7
8
9
10
11
13
15
18
22
26
32
-
ep (µm)
Tolerance grade
3
5
7
8
18
44
10
20
48
12
23
52
13
25
57
15
27
63
16
30
70
18
35
80
21
40
24
46
29
54
35
65
41
77
50
93
62
115
76
140
170
P
9
110
130
150
170
200
220
260
1
6
6
7
7
8
9
10
11
13
15
17
21
-
νup (µm)
Tolerance grade
3
5
8
18
10
20
12
23
12
25
13
26
14
29
16
31
17
35
19
39
22
44
25
51
29
59
34
69
41
82
49
99
119
For precision screws SN-F and SN-R the following values apply in all cases:
ν300p (µm)
Tolerance grade
1
6
3
12
5
23
7
52
9
130
1
4
ν2πp (µm)
Tolerance grade
3
5
7
6
8
10
9
10
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
101
Precision Ball Screw Assemblies
=
ep
=
ν up
=
ν300p =
ν2πp =
T
Ball screw with precision-rolled screw SN-R
l1
le
l0
le
lu
300
ep
c
nominal travel
thread length
travel deviation
useful travel
excess travel (the closer
tolerances for travel and
hardness do not apply here)
travel compensation for useful
travel, defined by use (standard:
c = 0)
tolerance for actual mean travel
deviation
permissible travel variation
within useful travel lu
permissible travel deviation
within 300 mm travel
permissible travel deviation
within 1 revolution
ν300p
=
=
=
=
=
+
l0
l1
∆l0
lu
le
∆l0
Symbol definitions (excerpt):
p
a
ep
Subindices:
= permissible
= actual
c=0
–
Improved values
compared with DIN 69 051, Part 3 and
ISO 3408-3 (tolerance reduced by half).
T
ep (µm)
Tolerance grade
1
For ep´ values < 315 mm, see table on
page 100.
Minimum number of measurements
within 300 mm (measuring interval)
and permissible excess travel.
3
e p´
5
9
lu
ν
300 300p
Lead
P
2.5
5
10
16
20
25
32
40
7
1
30
15
10
8
5
4
3
-
Minimum number of measurements
for tolerance grades
3
5
7
20
10
5
10
6
3
5
3
1
5
3
1
5
3
1
4
3
1
3
2
1
2
1
1
9
5
3
1
1
1
1
1
1
Excess travel
lemax.
(mm)
10
20
40
50
60
70
80
100
102
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Acceptance Conditions and Tolerance Grades
Run-outs and location
deviations
l5
l5
d0
t 5p AA´
l5
based on DIN 69 051, Part 3 and
ISO 3408-3
d0
Radial run-out t5 of the outer diameter of the ball screw shaft over the
length l5 used to determine the
straightness in relation to AA´.
above up to
=6
12
12
25
25
50
50 100
100 200
A
2 d0
A´
l5
t5p in µm for l5
for
tolerance grade
1
3
5
7; 9
80
160
315
630
1250
20
25
32
40
2 d0
l1
l5
A
t 5 max
t 5p
A
Radial run-out t6 of the bearing
diameter in relation to AA´ for l6 ≤ l.
d0
l 6a
l
2 d0
l6
Coaxial deviation t7´ of the journal
diameter of the ball screw shaft in
relation to the bearing diameter for
l7 ≤ l.
t 7p´ C
l7
l 7a
l
A´
20
50
125
200
80
125
200
315
10
12
16
-
12
16
20
25
20
25
25
25
Ref.
t7p´ in µm
length for l7 ≤ l
l
for
d0
tolerance grade
above up to
1
3
5; 7; 9
=6
20
80
5
5
6
20
50 125
5
5
6
50
125 200
6
6
7
125
200 315
8
12
Nominal
diameter
Bearing seat
d0
C
Ref.
t6p in µm
length for l6 ≤ l
l
for
d0
tolerance grade
above up to
1
3
5; 7; 9
=6
20
50
125
Lagersitz
Table value t7p applies when
I7 ≤ reference length I.
Where l7 > l then t7a ≤ t7p
A
7; 9
80
120
200
320
Nominal
diameter
t 6p AA´
Table value t6p applies when
I6 ≤ reference length I.
Where l6 > l then t6a ≤ t6p
t5max in µm
for l1 ≥ 4l5
for tolerance grade
above up to 1
3
5
40
40
50
64
40
60
60
75
96
60
80 100 125 160
80
100 160 200 256
l1/d0
l5
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
103
Precision Ball Screw Assemblies
t 8p´ C
d0
F
d
Axial run-out t8´ of the shaft (bearing)
face of the ball screw shaft in relation
to the bearing diameter.
C
Nominal
diameter
d0
above up to
=6
63
63
125
125
200
t8p´ in µm
for
tolerance grade
1
3
5; 7; 9
3
4
5
4
5
6
6
8
Flange
diameter
D5
above up to
16
32
32
63
63
125
125
250
250
500
t9p in µm
for
tolerance grade
1
3
5; 7; 9
10
12
16
12
16
20
16
20
25
20
25
32
32
40
Outer
diameter
D1
above up to
16
32
32
63
63
125
125
250
250
500
t10p in µm
for
tolerance grade
1
3
5; 7; 9
10
12
16
12
16
20
16
20
25
20
25
32
32
40
Bearing seat
Axial run-out t9 of the ball nut location face in relation to A and A´ (for
preloaded ball nuts only).
D5
F
A´
A
2 d0
Radial run-out t10 of the outer diameter D1 of the ball nut in relation to A
and A´ (for preloaded and rotating ball
nuts only). Fix screw against rotation
before carrying out the measurement.
2 d0
t 10p AA´
d0
D1
Fixed
A´
A
2 d0
Please ask for details of permissible
axial and radial run-out for driven
nuts.
d0
t 9p AA´
2 d0
104
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Preload and Rigidity
Preloaded single nut
Double nut
In addition to single nuts with reduced
backlash, Rexroth supplies preloaded
or adjustable-preload nut systems.
Single nuts can be preloaded to 2% or
5% of the basic dynamic load rating by
means of optimized ball size selection.
Tensioning two nuts against each other
eliminates the inherent backlash of the
ball screw, increases rigidity and thus
improves positioning accuracy.
Axial movement (deflection)
Nut system preload
As excessive preload can cause a reduction in service life, we recommend
that it not be more than 1/3 of the
average operating load. Depending on
the application, we will preload the nut
system to 7% or 10% of the basic
dynamic load rating.
Single nut
with backlash
Preloaded
and adjustablepreload nut systems
Axial load
The rigidity of these types of Rexroth nut
systems is approximately the same.
This is because the adjustable-preload
single nut and the preloaded single nut
have a much more compact design and
are thus only half as long as a double nut
system. The screw is typically far less
rigid than the nut unit (for details see
“Overall axial rigidity...”).
Adjustable-preload single nut
The adjustable-preload single nut allows
cost-efficient design techniques to
be implemented in a large number of
applications. The radial clearance and
preload are adjusted radially via a slot
approx. 0.1 mm wide ! see “Mounting”
on Page 112.
Depending on the application, we will
preload the nut system to 2% or 5% of
the basic dynamic load rating. The maximum preload equals approx. 5% of the
basic dynamic load rating.
Driven nut
Like the single nut, the driven nut from
the “Drive Units” catalog R310EN 3304
(in preparation) can be preloaded to 2%
or 5% of the basic dynamic load rating
by means of ball size selection.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
105
Precision Ball Screw Assemblies
Overall rigidity
Rigidity of the screw RS
The rigidity of a ball screw is also influenced by all adjoining parts such as
bearings, housing bores, nut housings
etc.
The rigidity of the screw RS depends on
the type of bearing used.
Overall axial rigidity Rtot of the ball
screw
See the corresponding tables for rigidity
values.
1. Ball screw shaft is fixed at one end.
2. Ball screw shaft is fixed at both ends.
The overall axial rigidity Rtot is comprised of the component rigidity of the
bearing RaL, the screw Rs and the nut
Rnu and is calculated according to the
formula:
1
1
Rtot R aL
1
Rs
1
R nu
S2 ≤
lS1
16
lS
Note:
2
The rigidity of the bearings corresponds
to the values found in the bearing manufacturer’s catalog.
See the corresponding tables in this
catalog for rigidity values of the bearings
offered by Rexroth.
w
R S2
D
Please note that in most cases the rigidity RS of the screw will be significantly
lower than the rigidity Rnu of the nut
unit. In an assembly with a diameter of
40 x 10, for example, the rigidity Rnu of
the nut unit is 2 to 3 times higher than
the rigidity RS of a screw with a length
of 500 mm.
Rigidity of the bearing RaL
See the corresponding tables for rigidity
values.
165
(d 0 -0.71·D w)
S2
S
S
(N/µm)
S2
d0
d1
d2
18
2
(d0 -0.71·Dw) (N/µm) 17
RS1 165
S1
The lowest screw rigidity RS2min occurs
at the center of the screw ( lS2 = lS/2)
and thus equals:
2
RS2min
660
(d0 -0.71 Dw )
(N/µm)
S
19
RS1
d0
Dw
lS1
=
=
=
=
rigidity of the screw
nominal diameter
ball diameter
distance between bearing
and nut
RS2
d0
Dw
lS
Rigidity in the area of the nut unit Rnu
The rigidity in the area of the preloaded
nut unit is calculated according to
DIN 69 051 (P5).
lS2
S
2
lS2
=
=
=
=
rigidity of the screw
nominal diameter
ball diameter
distance between bearing
and bearing
= distance between bearing
and nut
106
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
T0
T0
C
C0
TRD
RS
Rnu
Tpr0
=
=
=
=
=
=
=
=
overall dynamic drag torque
Tpr0 + TRD
basic dynamic load rating
basic static load rating
dynamic drag torque of 2 seals
rigidity of the screw
rigidity of the nut
dynamic drag torque without
a seal
d0
P
Dw
i
=
=
=
=
nominal diameter
lead
ball diameter
number of ball track turns
The values given for dynamic drag
torque are proven practical indicators
for the nut preload.
Note:
Measurement of the dynamic drag
torque ! see “Mounting” on Page 112.
6 x 1R x 0.8 - 4
6 x 2R x 0.8 - 4
8 x 1R x 0.8 - 4
8 x 2R x 1.2 - 4
8 x 2.5R x 1.588 - 3
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 2
16 x 16R x 3 - 3
20 x 5R x 3 - 4
20 x 5R x 3 - 5
20 x 20R x 3.5 - 2
20 x 20R x 3.5 - 3
20 x 40R x 3.5 - 1x4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 2
25 x 25R x 3.5 - 3
25 x 25R x 3.5 -1.2x4
32 x 5R x 3.5 - 4
32 x 5L x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 20R x 3.969 - 3
32 x 32R x 3.969 - 2
32 x 32R x 3.969 - 3
32 x 32R x 3.969 -1.2x4
40 x 5R x 3.5 - 5
40 x 5L x 3.5 - 5
40 x 10R x 6 - 4
40 x 10R x 6 - 6
40 x 10L x 6 - 4
40 x 12R x 6 - 4
40 x 16R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 2
40 x 40R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 4
50 x 10R x 6 - 6
50 x 12R x 6 - 6
50 x 16R x 6 - 6
50 x 20R x 6.5 - 3
50 x 20R x 6.5 - 5
50 x 40R x 6.5 - 2
50 x 40R x 6.5 - 3
63 x 10R x 6 - 4
63 x 10R x 6 - 6
63 x 20R x 6.5 - 3
63 x 20R x 6.5 - 5
63 x 40R x 6.5 - 2
63 x 40R x 6.5 - 3
80 x 10R x 6.5 - 6
80 x 20R x 9 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Load ratings
dyn.
C
(N)
stat.
C0
(N)
900
890
1020
1870
2200
3800
2500
12300
9600
6300
9300
14300
17500
9100
13300
8000
15900
15700
10100
14700
19700
21600
21600
31700
13500
19700
13400
19500
26300
29100
29100
50000
72100
50000
49900
49700
37900
25500
37000
32000
55400
79700
79600
79400
47900
75700
32100
46500
61800
88800
53200
83900
36900
53400
108400
170900
262700
119500
295100
130600
326500
1290
1280
1740
2760
2800
5800
3600
16100
12300
7600
12000
21500
27300
12100
18800
14900
27200
27000
15100
23300
39400
40000
40000
58300
21800
33700
22000
34000
57600
64100
64100
86400
132200
86400
86200
85900
62800
40300
62300
81300
109000
166500
166400
166000
87900
149700
55800
85900
140500
214300
112100
190300
74300
114100
291700
403900
534200
371900
686400
468700
870400
Backlash
of single nut
Overall rigidity
of the screw
Reduced
Dynamic drag torque, preload and rigidity for screws
of tolerance grade 1-7 with
single nuts from diameter
16 mm (smaller dias. without backlash only) FSZ-E-S,
FEP-E-S (2% only), FEM-E-S,
FEM-E-C, ZEM-E-S; SEM-E-S
and SEM-E-C (observe centering diameter D1 to be set)
(ZEV-E-S with backlash only!)
Size
d0 x P x Dw - i
Standard
Preload and
Overall Rigidity
of Single Nuts
( )
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.04
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.09
0.11
0.07
0.11
0.07
0.11
0
0
0
0
0.010
0.010
0.010
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.020
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.035
0.045
0.055
0.035
0.055
0.035
0.055
5
5
9
9
8
18
18
32
32
32
32
53
53
52
52
52
86
86
84
84
84
144
144
141
141
141
141
141
141
232
232
211
211
211
211
211
211
211
211
373
345
345
345
345
340
340
340
340
569
569
563
563
563
563
938
894
832
1501
1366
2391
2220
RS
N·m
µm
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
107
Precision Ball Screw Assemblies
Screws with single nuts
3% preload
2% preload
Rnu
(N/µm)
Tpr0 (Nm)
Rnu
Tolerance grade (N/µm)
1;3;5;7
max.
70
100
60
210
160
100
160
260
330
130
200
170
310
320
160
240
350
380
380
500
200
300
200
300
440
550
550
500
760
500
510
510
380
240
370
640
590
890
900
910
470
780
300
450
700
1050
560
930
380
570
1240
1410
1400
1430
1680
1600
1970
0.004
0.009
0.006
0.040
0.030
0.020
0.030
0.060
0.070
0.040
0.050
0.030
0.080
0.080
0.050
0.070
0.100
0.140
0.140
0.200
0.090
0.130
0.090
0.120
0.170
0.230
0.230
0.400
0.580
0.400
0.400
0.400
0.300
0.200
0.300
0.320
0.550
0.800
0.800
0.790
0.480
0.760
0.320
0.470
0.780
1.120
0.670
1.060
0.460
0.670
1.730
2.730
4.200
2.390
5.900
3.270
8.160
240
190
120
180
300
375
150
220
350
360
180
270
420
420
570
230
340
220
340
620
620
570
860
570
580
580
430
280
420
720
670
1000
1020
1030
540
880
340
520
790
1190
640
1060
440
660
1390
1600
1590
1600
1830
1780
2230
5% preload
Tpr0 (Nm)
Tolerance grade
1;3;5;7
min.
max.
Rnu
(N/µm)
max.
min.
0.03
0.02
0.01
0.02
0.03
0.04
0.02
0.03
0.04
0.04
0.03
0.04
0.1
0.1
0.15
0.05
0.07
0.05
0.07
0.17
0.17
0.36
0.36
0.52
0.3
0.3
0.23
0.15
0.22
0.24
0.5
0.72
0.72
0.71
0.43
0.68
0.24
0.42
0.7
1.01
0.6
0.95
0.42
0.61
1.82
2.87
4.41
2.51
6.2
3.43
8.57
280
220
140
210
350
440
180
270
410
430
210
320
500
500
670
270
410
260
400
720
720
670
1010
670
680
680
510
330
490
830
780
1180
1190
1210
630
1050
410
610
920
1380
750
1250
510
770
1610
1880
1870
1830
2230
2020
2600
0.06
0.05
0.03
0.04
0.09
0.11
0.05
0.08
0.12
0.12
0.08
0.11
0.26
0.26
0.38
0.16
0.24
0.16
0.23
0.44
0.44
0.80
1.15
0.80
0.80
0.80
0.61
0.38
0.59
0.64
1.11
1.59
1.59
1.59
0.96
1.51
0.64
0.93
1.56
2.38
1.34
2.25
0.93
1.35
3.69
5.81
8.93
5.08
12.54
6.94
17.35
0.13
0.1
0.06
0.1
0.14
0.17
0.09
0.13
0.2
0.19
0.12
0.18
0.31
0.31
0.46
0.21
0.31
0.21
0.31
0.52
0.52
0.84
0.84
1.21
0.9
0.89
0.68
0.46
0.67
0.72
1.16
1.67
1.67
1.67
1.01
1.59
0.72
0.98
1.64
2.35
1.41
2.22
0.98
1.41
3.38
5.33
8.2
4.66
11.51
6.37
15.92
max.
Tpr0 (Nm)
Tolerance grade
3;5
max.
min.
min.
max.
0.14
0.11
0.07
0.10
0.20
0.25
0.13
0.19
0.28
0.27
0.18
0.26
0.43
0.43
0.63
0.27
0.39
0.27
0.39
0.73
0.73
1.20
1.73
1.20
1.20
1.19
0.91
0.64
0.89
0.96
1.66
2.39
2.39
2.38
1.44
2.27
0.96
1.40
2.34
3.22
2.01
3.04
1.39
2.02
4.99
7.86
12.08
6.87
16.97
9.39
23.47
0.05
0.04
0.03
0.04
0.07
0.09
0.05
0.07
0.10
0.10
0.06
0.09
0.24
0.24
0.36
0.15
0.22
0.15
0.22
0.41
0.41
0.75
1.08
0.75
0.75
0.75
0.57
0.36
0.56
0.60
1.04
1.49
1.49
1.49
0.90
1.42
0.60
0.87
1.46
2.24
1.26
2.11
0.87
1.26
3.47
5.47
8.41
4.78
11.8
6.53
16.33
0.04
0.03
0.02
0.03
0.06
0.07
0.04
0.05
0.08
0.08
0.05
0.07
0.21
0.21
0.30
0.13
0.19
0.13
0.19
0.35
0.35
0.70
1.01
0.70
0.70
0.70
0.53
0.31
0.52
0.56
0.97
1.39
1.39
1.39
0.84
1.32
0.56
0.81
1.36
2.10
1.17
1.98
0.81
1.18
3.25
5.13
7.88
4.48
11.07
6.12
15.30
0.16
0.12
0.08
0.12
0.23
0.28
0.15
0.21
0.32
0.31
0.20
0.29
0.48
0.48
0.71
0.30
0.44
0.30
0.44
0.81
0.81
1.30
1.87
1.30
1.30
1.29
0.99
0.71
0.96
1.04
1.80
2.59
2.59
2.58
1.56
2.46
1.04
1.51
2.53
3.50
2.18
3.30
1.51
2.19
5.42
8.55
13.14
7.47
18.44
10.20
25.51
1
0.15
0.12
0.08
0.11
0.21
0.26
0.14
0.20
0.30
0.29
0.19
0.28
0.45
0.45
0.66
0.28
0.41
0.28
0.41
0.76
0.76
1.25
1.80
1.25
1.25
1.24
0.95
0.66
0.93
1.00
1.73
2.49
2.49
2.48
1.50
2.37
1.00
1.45
2.43
3.36
2.09
3.17
1.45
2.10
5.20
8.20
12.61
7.17
17.71
9.80
24.49
7
108
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Preload and Rigidity of Double Nuts
Dynamic drag torque, preload and rigidity for screws
of tolerance grade 1-7 with
double nuts FDM-E-S,
FDM-E-C
T0
T0
C
C0
TRD
RS
Rnu
Tpr0
=
=
=
=
=
=
=
=
overall dynamic drag torque
Tpr0 + TRD
basic dynamic load rating
basic static load rating
dynamic drag torque of 2 seals
rigidity of the screw
rigidity of the nut
dynamic drag torque without
a seal
d0
P
Dw
i
=
=
=
=
nominal diameter
lead
ball diameter
number of ball track turns
The values given for dynamic drag
torque are proven practical indicators
for the nut preload.
Note:
Measurement of the dynamic drag
torque ! see “Mounting” on Page 112.
Size
d0 x P x Dw - i
16 x 5R x 3 - 4
20 x 5R x 3 - 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 10R x 6 - 6
40 x 20R x 6 - 3
50 x 5R x 3.5 - 5
50 x 10R x 6 - 4
50 x 10R x 6 - 6
50 x 20R x 6.5 - 5
63 x 10R x 6 - 4
63 x 10R x 6 - 6
63 x 20R x 6.5 - 5
80 x 10R x 6.5 - 6
80 x 20R x 9 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7 - 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Rigidity
of the screw
RS
N·m
µm
Load ratings
dyn.
stat.
C
C0
(N)
(N)
( )
12300
14300
15900
15700
21600
31700
29100
50000
72100
37900
32000
55400
79700
75700
61800
88800
83900
108400
170900
262700
119500
295100
130600
326500
32
53
86
86
144
141
232
211
211
211
373
345
345
340
569
569
563
938
894
832
1501
1366
2391
2220
16100
21500
27200
27000
40000
58300
64100
86400
132200
62800
81300
109000
166500
149700
140500
214300
190300
291700
403900
534200
371900
686400
468700
870400
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
109
Precision Ball Screw Assemblies
Screws with double nuts FDM-E-S, FDM-E-C
min.
7% preload
Tpr0 (Nm)
Tolerance grade
3;5
1
max.
min.
max.
min.
0.03
0.05
0.07
0.07
0.12
0.21
0.24
0.42
0.65
0.32
0.34
0.62
0.89
0.85
0.87
1.25
1.18
1.94
3.25
5.00
2.84
7.02
3.89
9.71
0.08
0.11
0.16
0.15
0.27
0.36
0.41
0.70
0.97
0.53
0.56
0.93
1.34
1.27
1.31
1.88
1.78
2.91
4.40
6.77
3.85
9.50
5.26
13.14
Rnu
(N/µm)
310
390
460
470
550
750
790
740
1120
570
920
870
1300
1170
1020
1520
1390
1770
2090
2070
2000
2460
2200
2860
0.03
0.04
0.06
0.05
0.10
0.20
0.23
0.39
0.61
0.3
0.31
0.58
0.84
0.79
0.82
1.17
1.11
1.82
3.06
4.71
2.68
6.61
3.66
9.14
0.08
0.12
0.17
0.16
0.29
0.37
0.42
0.73
1.01
0.55
0.58
0.97
1.39
1.32
1.36
1.96
1.85
3.04
4.59
7.06
4.02
9.92
5.49
13.71
0.02
0.03
0.04
0.04
0.08
0.17
0.20
0.34
0.57
0.25
0.27
0.54
0.78
0.74
0.76
1.10
1.04
1.7
2.87
4.41
2.51
6.20
3.43
8.57
Rnu
(N/µm)
7
max.
0.09
0.13
0.18
0.18
0.31
0.4
0.46
0.78
1.05
0.59
0.63
1.01
1.45
1.38
1.42
2.04
1.92
3.16
4.79
7.36
4.18
10.33
5.71
14.28
min.
350
430
510
530
610
830
870
830
1250
630
1010
960
1450
1310
1120
1690
1560
1950
2330
2320
2190
2740
2390
3170
0.05
0.07
0.1
0.09
0.21
0.3
0.35
0.64
0.92
0.49
0.51
0.89
1.28
1.21
1.25
1.79
1.69
2.95
4.65
7.15
4.06
10.03
5.55
13.88
10% preload
Tpr0 (Nm)
Tolerance grade
1
3;5
max.
min.
max.
0.11
0.16
0.22
0.22
0.35
0.51
0.58
0.96
1.38
0.73
0.77
1.33
1.91
1.82
1.87
2.69
2.54
3.99
6.29
9.67
5.50
13.57
7.51
18.77
0.04
0.06
0.08
0.08
0.19
0.28
0.33
0.60
0.87
0.45
0.48
0.83
1.20
1.14
1.17
1.68
1.59
2.78
4.38
6.73
3.82
9.44
5.22
13.06
0.12
0.17
0.24
0.24
0.36
0.53
0.61
1.00
1.44
0.76
0.80
1.39
1.99
1.89
1.95
2.80
2.64
4.16
6.56
10.09
5.74
14.16
7.84
19.59
7
min.
max.
0.03
0.05
0.06
0.06
0.17
0.24
0.28
0.56
0.81
0.42
0.45
0.78
1.12
1.06
1.09
1.57
1.48
2.60
4.10
6.30
3.59
8.85
4.90
12.24
0.13
0.18
0.25
0.25
0.39
0.57
0.65
1.04
1.50
0.79
0.83
1.44
2.07
1.97
2.02
2.91
2.75
4.34
6.84
10.51
5.98
14.76
8.16
20.41
110
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Friction Torques of Seals
Seal torque for single and
double nuts
(ZEV-E-S is supplied without
a seal)
T0
T0
TRD
Tpr0
=
=
=
=
overall dynamic drag torque
Tpr0 + TRD
dynamic drag torque of 2 seals
dynamic drag torque without
seal
d0 = nominal diameter
P
= lead
Dw = ball diameter
Note:
Measurement of the dynamic drag
torque ! see “Mounting” on Page 112.
Dynamic drag torque of 2 seals
Size
d0 x P x Dw
TRD
approx. (Nm)
Standard seal
TRD
approx. (Nm)
Reinforced seal;
for precision-rolled
screw SN-R only
6 x 1R x 0.8
6 x 2R x 0.8
8 x 1R x 0.8
8 x 2R x 1.2
8 x 2.5R x 1.588
12 x 2R x 1.2
12 x 5R x 2
12 x 10R x 2
16 x 5R x 3
16 x 10R x 3
16 x 16R x 3
20 x 5R x 3
20 x 20R x 3.5
20 x 40R x 3.5
25 x 5R x 3
25 x 10R x 3
25 x 25R x 3.5
32 x 5R x 3.5
32 x 5L x 3.5
32 x 10R x 3.969
32 x 20R x 3.969
32 x 32R x 3.969
40 x 5R x 3.5
40 x 5L x 3.5
40 x 10R x 6
40 x 10L x 6
40 x 16R x 6
40 x 20R x 6
40 x 40R x 6
50 x 5R x 3.5
50 x 10R x 6
50 x 12R x 6
50 x 16R x 6
50 x 20R x 6.5
50 x 40R x 6.5
63 x 10R x 6
63 x 20R x 6.5
63 x 40R x 6.5
80 x 10R x 6.5
80 x 20R x 9
80 x 20R x 12.7
100 x 10R x 6.5
100 x 20R x 12.7
125 x 10R x 6.5
125 x 20R x 12.7
0.010
0.010
0.010
0.020
0.015
0.030
0.030
0.030
0.080
0.080
0.080
0.100
0.120
0.040
0.120
0.150
0.200
0.250
0.250
0.250
0.250
0.250
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.500
0.600
0.600
0.600
0.600
0.600
1.200
1.200
1.200
1.400
2.200
2.200
2.200
2.800
3.600
5.000
0.34
0.29
0.51
0.46
0.49
0.45
0.85
0.91
0.54
0.95
1.0
1.4
-
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
111
Precision Ball Screw Assemblies
Please bear in mind the
following when modifying
and retrofitting the seals:
All precision screws SN-F and the
precision-rolled screws SN-R with small
leads are designed as single (Fig. 1).
There is therefore only one ball track
on the screw.
However, precision-rolled screws SN-R
with higher leads are designed as
double or quadruple (Figs. 2 and 3).
The sealing geometry here is therefore
different from that for the precision
screws SN-F. The distinction is made
clear by the part number on the component.
Fig. 1
Single seal
Fig. 2
Seal for double precisionrolled screw SN-R with
average lead
“Reinforced seals” for precisionrolled screws SN-R are available as
an option. These are identified by their
opal-green color and their part number.
Low-friction seals for precision-rolled
screws SN-R are available upon request. This version is currently in preparation. The seals are identified by their
red-brown color and their part number.
Fig. 3
Seal for quadruple precisionrolled screw SN-R with high
lead
Inserting the seal
Position the nut on the screw as illustrated in the diagram. Insert the seal so
that its projection is in the recess and
press it in until it snaps into the groove.
While turning the nut on the screw,
watch the sealing lip carefully and
straighten it if necessary by applying
pressure to the exposed face. Ensure
that the lip is not damaged.
Detailed mounting instructions are
delivered along with the parts.
5 - 10 mm
112
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Mounting
Condition as delivered
Nut mounting
Mounting steps
Rexroth Ball Screws are normally delivered with an initial supply of grease type
Rexroth Dynalub. Relubrication with
grease or oil is thus possible, and cartridges and cans of this grease are available. If another lubricant is used, you will
need to check that it is compatible with
the initial supply.
Preloaded single nut
The nut is to be mounted as follows:
Remove the rubber ring from one end
of the mounting arbor.
For special cases, the ball screws can
also be supplied with only a preservative
coating. This can be indicated by choosing the appropriate option number in the
ordering code.
Double nut
Machine tool series
These models are supplied with premounted nut units.
The nut unit and screw must not be
disassembled. Should this become
necessary for any reason, please ask.
Nut mounting
Single nut with standard backlash
Single nut with reduced backlash
Important:
The selected lubricant must be in the nut
before the machine is started.
Cleaning
Various cleaning agents can be used to
degrease and wash the assembly:
– aqueous cleaning agents
– organic cleaning agents
Important:
Immediately after cleaning, thoroughly
dry all parts, then apply a preservative
coating or anti-corrosion oil. In all cases,
take care to observe the appropriate
legal regulations (environmental protection, health and safety at work, etc.)
as well as the specifications for the
cleaning agent (e.g. handling).
Adjustable-preload single nut
The nut unit may only be mounted on
a screw with machined ends using a
mounting arbor. In this case, the screw
spigot serves to center the mounting
arbor. On a screw end form “00”, a
centering hole “Z” can be used to fit an
auxiliary spigot as a mounting aid. The
outer diameter of the arbor should be
approx. 0.1 mm smaller than the root
diameter of the screw. In most cases,
the transport arbor on which the nuts are
delivered may be used to mount the nut.
The end of the screw thread must be
carefully chamfered in order to prevent
damage to the seal and the internal
components of the nut unit.
Push the mounting arbor with nut until
it bears against the end of the thread.
The arbor must make contact with no
axial clearance.
Carefully turn the nut unit onto the
thread, applying only slight thrust.
Storage
Ball screw assemblies are high-quality
systems that must be treated with due
care. In order to prevent damage and
contamination, the elements should not
be removed from the protective wrapping until immediately before installation.
Once they have been removed from the
packaging, they must be set down on
V-shaped cradles.
Remove the arbor only when the nut unit
is fully located on the screw thread.
The various mounting steps are described below.
Proceed in reverse order when removing
the nut from the screw. Take particular
care not to damage the nut, screw or
internal components, as this could result
in the premature failure of the ball screw
assembly.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
113
Precision Ball Screw Assemblies
Preload of adjustable-preload
single nuts
Measurement of the dynamic drag
torque for SEM-E-C and SEM-E-S.
Using the adjusting screw, reduce the
clearance of the nut mounted on the
screw until the corresponding dynamic
drag torque Tpr0 specified in the table
! see Page 106, has been attained
(ball screw lightly oiled).
Check this torque along the entire length
of the thread; if the torque deviates from
the value specified in the table at any
point along the thread, adjust accordingly.
Once the torque has been properly adjusted, the centering diameter D1 must
correspond to the values specified in the
table ! see Pages 34 and 38. Cover
the head of the screw with a protective
cap.
F
Measuring gauge
e.g. spring gauge
Tpra = F·r
r
Installation in the machine
It is not normally necessary to remove
the preservative coating before installation.
– If the ball screw is contaminated it
must first be cleaned (see “Cleaning”)
and reoiled.
– Push the nut unit into the mounting
bore, taking care to avoid any impacts
or misalignment.
– Tighten the mounting screws using a
torque wrench if necessary. Maximum
tightening torques for the steel/steel
material pairing (Rm ≥ 370 N/mm2),
see table.
Steel/steel material pairing
Screw
Tightening torque (Nm)
diameter
strength class
(mm)
to DIN ISO 898:
M3
M4
M6
M8
M10
M12
M16
8.8
10.9
12.9
1.3
2.7
9.5
23
46
80
195
1.8
3.8
13
32
64
110
275
2.1
4.6
16
39
77
135
330
D1
Adjusting
screw
Tpra = currently measured dynamic
drag torque
Mounting instructions are supplied as
standard along with every unit. Please
ask for extra copies if needed.
– For the steel/aluminum and aluminum/aluminum material pairings
(Rm ≥ 280 N/mm2), the maximum
tightening torques specified in the
follow table apply.
When screwing into aluminum, the
length of thread engagement should
be at least 1.5 times the screw
diameter.
Steel/aluminum and
aluminum/aluminum material pairing
Screw
Tightening torque (Nm)
diameter
strength class
(mm)
to DIN ISO 898:
8.8
10.9
12.9
M3
1.2
1.2
1.2
M4
2.4
2.4
2.4
M6
8.5
8.5
8.5
M8
20
20
20
M10
41
41
41
M12
70
70
70
M16
175
175
175
Alignment of the precision
ball screw assembly in the
machine
A gauge with a self-aligning contact pad
is available from Rexroth for easy alignment of the ball screw assembly.
114
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Lubrication
Standard lubrication practices for ball
bearings also apply to ball screws.
Lubricant loss is, however, greater than
that from conventional ball bearings, for
instance, due to the axial motion between the screw and the nut.
Oil lubrication
The influence of the temperature on the
performance of the ball screw is very
significant, as the thermal expansion of
the ball screw interferes with the positioning accuracy of the assembly.
One of the advantages of oil lubrication
over grease lubrication is therefore the
minimized heat build-up of the ball
screw, particularly at high speeds.
As a rule, commercially available mineral
base oils used for ball bearings are suitable. The necessary viscosity depends
on the speed, temperature and load
conditions of the respective application
(see DIN 51501, 51517, 51519 and
GfT Worksheet 3).
Oils ranging from ISO VG 68 to approx.
ISO VG 460 are used in practice. The
high viscosity grades (e.g. ISO VG 460)
should be preferred in general and particularly for slow running screws. A maximum relubrication interval of up to 10
operating hours can be attained with
small quantities from the adjacent table.
Please ask for details for driven nuts.
Relubrication quantity and intervals for oil
d0
Initial lubrication oil
Ve (ml)
Relubrication Revooil
lutions
Vn (ml)/10h (mill.)
5
10
16
20
25
32
40
8
12
16
20
25
32
40
50
63
0.300
0.300
0.300
0.600
0.600
0.600
2.000
4.000
4.000
0.030
0.030
0.030
0.060
0.060
0.060
0.400
0.800
0.800
7
7
7
5
5
5
5
5
5
13
13
13
10
10
10
10
10
10
21
21
21
16
16
16
16
16
16
26
26
26
20
20
20
20
20
20
33
33
33
25
25
25
25
25
25
42
42
42
32
32
32
32
32
32
52
52
52
40
40
40
40
40
40
1.3
1.3
1.3
1.0
1.0
1.0
1.0
1.0
1.0
d0 = nominal diameter
Relubrication intervals for NLGI 2 greases
d0
Revolutions
Relubrication quantity, see (mill.)
table for NLGI 2 greases.
≤ 40
50
> 40
10
All commercially available high-quality
ball bearing lubricating greases may
be used. Read the lubricant manufacturer’s specifications carefully! Never
use greases with solid lubricant components (e.g. graphite or MoS2).
Travel (km) with lead P =
5
10
250 500
50 100
16
20
25
32
40
800 1000 1250 1600 2000
160 200 250 320 400
d0 = nominal diameter
Limit conditions:
Load
= ≤ 0.2 C
nmin
= 100 min-1
Tempmax. nut
= 80°C
Tempcontinuous nut = 60°C
Orientation:
Operating mode:
Sealing:
Grease lubrication
The advantage of grease lubrication
is that the ball screw can run long distances on one supply of grease. As
a result, a lubricating system is not
required in many cases. The amount
of grease used should fill the nuts to
approximately half of their capacity.
Travel (km) with lead P =
For relubrication, grease cartridges
containing Dynalub 510 and 520 are
available from Rexroth.
Greases in accordance with DIN 51825
K2K and, for higher loads, KP2K of NLGI
Class 2 in accordance with DIN 51818
are recommended for the longest possible lubrication intervals. Tests have
shown that greases of NLGI Class 00
achieve only about 50% of the running
performance of Class 2 at higher loads.
The lubrication interval depends on many
factors such as the degree of contamination, operating temperature, load, etc.
The following values can thus serve only
as a guide.
– any
– driven screw
– no short stroking
or hypercritical
operation
– standard
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
115
Precision Ball Screw Assemblies
Relubrication quantities for
NLGI 2 greases:
Standard series
Size
d0 x P x Dw - i
For NLGI 2 greases:
The nut has to be lubricated with
lubricant via the lube port before
the ball screw is started.
Use double the amount of the
relubrication quantity for initial
lubrication.
8 x 2.5R x 1.588 - 3
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5R x 3 - 4
16 x 10R x 3 - 3
16 x 16R x 3 - 2
16 x 16R x 3 - 3
20 x 5R x 3 - 4
20 x 5R x 3 - 5
20 x 20R x 3.5 - 2
20 x 20R x 3.5 - 3
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 2
25 x 25R x 3.5 - 3
32 x 5L x 3.5 - 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 20R x 3.969 - 3
32 x 32R x 3.969 - 2
32 x 32R x 3.969 - 3
40 x 5L x 3.5 - 5
40 x 5R x 3.5 - 5
40 x 10L x 6 - 4
40 x 10R x 6 - 4
40 x 10R x 6 - 6
40 x 12R x 6 - 4
40 x 16R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 2
40 x 40R x 6 - 3
50 x 10R x 6 - 4
50 x 10R x 6 - 6
50 x 12R x 6 - 6
50 x 16R x 6 - 6
50 x 20R x 6.5 - 3
50 x 20R x 6.5 - 5
50 x 40R x 6.5 - 2
50 x 40R x 6.5 - 3
63 x 10R x 6 - 4
63 x 10R x 6 - 6
63 x 20R x 6.5 - 3
63 x 20R x 6.5 - 5
63 x 40R x 6.5 - 2
63 x 40R x 6.5 - 3
80 x 10R x 6.5 - 6
80 x 20R x 9 - 6
80 x 20R x 12.7 - 6
100 x 10R x 6.5 - 6
100 x 20R x 12.7- 6
125 x 10R x 6.5 - 6
125 x 20R x 12.7 - 6
Relubrication quantity of grease (g)
Single nut
Double nut
FEM-E-C / FEM-E-S / SEM-E-C
FDM-E-C / FDM-E-S
SEM-E-S / ZEM-E-A / ZEM-E-S
Precision screw
Precision screw
SN-R
SN-F
SN-R
SN-F
0.1
0.1
0.3
0.3
0.3
0.3
0.6
0.6
1.7
1.7
0.8
0.7
0.9
0.8
1.1
1.0
0.9
0.9
2.7
2.7
1.0
1.0
1.7
1.3
2.2
1.6
1.4
1.4
3.2
3.2
1.7
1.7
3.8
3.8
2.4
1.9
3.1
2.4
2.3
2.3
2.0
2.0
4.5
4.5
2.8
2.8
6.0
6.0
2.5
2.2
3.2
2.8
3.7
2.8
4.9
3.7
3.1
3.1
2.7
2.7
6.9
6.9
6.0
6.0
6.0
6.0
15.1
15.1
7.3
7.3
17.7
17.7
6.1
6.1
8.3
6.9
19.3
16.5
7.8
6.8
18.5
16.4
9.4
7.4
12.9
10.1
8.0
8.0
19.7
19.7
9.7
9.7
23.0
23.0
10.4
10.4
14.6
12.1
11.4
9.7
15.6
13.1
31.3
26.3
13.9
10.7
18.6
14.1
9.0
9.0
23.0
23.0
11.0
11.0
27.0
27.0
13.9
11.7
19.2
16.0
39.4
33.0
17.0
13.0
22.9
17.3
16.3
16.3
39.0
39.0
38.9
38.9
76.2
76.2
59.0
59.0
119.5
119.5
20.8
20.8
43.0
43.0
72.9
72.9
147.4
147.4
25.8
25.8
53.5
53.5
90.3
90.3
183.1
183.1
116
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Relubrication quantities for
NLGI 2 greases:
Miniature, ECO series
For NLGI 2 greases:
The nut has to be lubricated with
lubricant via the lube port before
the ball screw is started.
Size
d0 x P x Dw-i
6 x 1R x 0.8- 4
6 x 2R x 0.8- 4
8 x 1R x 0.8 - 4
8 x 2R x 1.2 - 4
8 x 2.5R x 1.588 - 3
12 x 2R x 1.2 - 4
12 x 5R x 2 - 3
12 x 10R x 2 - 2
16 x 5L x 3 - 3
16 x 5R x 3 - 3
16 x 10R x 3 - 3
20 x 5R x 3 - 4
20 x 5R x 3 - 5
20 x 40R x 3.5 - 1 x 4
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3.5 - 1.2 x 4
32 x 5R x 3.5 - 4
32 x 10R x 3.969 - 5
32 x 20R x 3.969 - 2
32 x 32R x 3.969 - 1.2 x 4
40 x 5R x 3.5 - 5
40 x 10R x 6 - 4
40 x 20R x 6 - 3
Relubrication quantity of grease (g)
Single nut, precision-rolled screw R
FEM-E-B Miniature
FSZ-E-S
FEP-E-S
ZEV-E-S
0.06
0.12
0.12
0.24
0.10
0.15
0.30
0.30
-
0.7
1.1
1.3
1.6
2.3
2.0
2.2
5.2
6.7
1.6
1.5
2.6
-
0.3
0.3
0.85
0.85
1.0
1.2
-
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
117
Precision Ball Screw Assemblies
High-performance Lubricant for Linear Motion Systems
(not released for the USA)
●
●
Product Description Dynalub 510
Dynalub 510 is a NLGI Category 2 lithium-based high-performance
grease specially developed for linear motion systems. It is notable for
offering excellent water resistance and protection against corrosion,
and is suitable for use at temperatures of between –20°C and 80°C.
Applications
Under conventional environmental conditions this ground-fiber,
homogeneous grease is ideally suitable for the lubrication of linear
elements:
– for loads of up to 0.5 Cdyn
– also for short-stroke applications ≥ 1 [mm]
● Technical Data
Chemical composition
Designation
Appearance
Service temperature range
NLGI Category
Worked penetration
Water resistance
Melting point in °C
Flash point in °C
Base oil viscosity
Flow pressure at –20°C
EMCOR test
Density at +25°C
Copper corrosion
Four ball tester welding load
Four ball tester impression diameter
Shelf life in original container
Mineral oil, special lithium soap, agents
KP2K-20
Light-brown/beige, ground-fiber
–20°C to +80°C
2
265-295 1/10 mm
0-60, 1-90
> 165
> 200 – base oil
100 mm2/s
40°C
10 mm2/s
100°C
< 1400 hPa
0/0
approx. 0.92 g/cm3
2 (24 h/120°C)
> 2000 N
0.93 (400 N, 1 h)
2 years
DIN 51 825
DIN ISO 2137
DIN 51 807 Part 1
DIN ISO 2176
DIN ISO 2592
DIN 51 562
DIN 51 805
DIN 51 802
DIN 51 757
DIN 51 811
DIN 51 350 Part 4
DIN 51 350 Part 5
For more details, refer to RE 82 052/2004-04
●
●
Product Description Dynalub 520
Dynalub 520 is a NLGI Class 00 lithium-based high-performance
grease specially developed for linear motion technology. It is notable
for offering excellent water resistance and protection against corrosion,
and is suitable for use at temperatures of between –20°C and +80°C.
Applications
Under conventional environmental conditions this ground-fiber,
homogeneous grease is ideally suited for the lubrication of miniature
linear elements and for use in centralized dispensing systems.
● Technical Data
Chemical composition
Designation
Appearance
Service temperature range
NLGI Category
Worked penetration
Water resistance
Melting point in °C
Flash point in °C
Base oil viscosity
Flow pressure at –20°C
EMCOR test
Density at +25°C
Copper corrosion
Four ball tester welding load
Four ball tester impression diameter
Shelf life in original container
For more details, refer to RE 82 053/2004-04
Mineral oil, special lithium soap, agents
KP00K-20
Light-brown/beige, ground-fiber
–20°C to +80°C
00
400-430 1/10 mm
1-90
> 160
> 200 – base oil
100 mm2/s
40°C
10 mm2/s
100°C
< 700 hPa
0
approx. 0.92 g/cm3
0-1 (24 h/100°C)
1800 N
0.8 (400 N, 1 h)
2 years
DIN 51 825
DIN ISO 2137
DIN 51 807 Part 1
DIN ISO 2176
DIN ISO 2592
DIN 51 562
DIN 51 805
DIN 51 802
DIN 51 757
DIN 51 811
DIN 51 350 Part 4
DIN 51 350 Part 5
118
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Design Calculations
Upon request, we can perform all
calculations to your specifications.
! see “Design Calculation Service
Form” on Page 126.
Average speed and
average load
Where the speed and load fluctuate, the
service life must be calculated using the
averages Fm and nm.
– where the speed fluctuates, the
average speed nm is calculated as
follows
– where the load fluctuates and the
speed is constant, the average load
Fm is calculated as follows
– where both the load and the speed
fluctuate, the average load Fm is
calculated as follows
nm
Fm
Fm
q
q1
n + 2 n
100 1 100 2
qn
n
100 n
q1
3 q2
3
F1 100 F2 100
3
n1
nm
3
3
1
nm = average speed
(min-1)
q = discrete time step (%)
1
qn
3
Fn 100
q1
n2 q2
3
F
100 2 nm 100
Fm = average load
q = discrete time step
2
qn
nn
nm 100
3
Fn
3
Fm = average load (N)
q = discrete
time step
(%)
nm = average
speed
(min-1)
C
L
L = service life
(revolutions)
=
average
F
6 m
load
(N)
C = dynamic
load rating (N)
Service life in revolutions L
L
C
3
10
Fm
6
⇒C
4
Fm
3
L
10 6
⇒ Fm
5
3
(N)
(%)
10 6
Nominal life
Service life in hours Lh
Lh
L
n m 60
Lh = service life
L = service life
nm = average speed
7
Machine service life = Lh ·
(h)
(revolutions)
(min-1)
Machine operating hours
Screw operating hours
8
Drive torque and drive power
Drive torque Mta
for conversion of rotary motion into linear
motion:
M ta
Transmitted torque Mte
M te
FP
9
η
2000 π
10
2000 π η
FP
for conversion of linear motion into rotary
motion:
Mta
Mte
F
P
η
η´
=
=
=
=
=
=
drive torque
transmitted torque
operating load
lead
mechanical efficiency
mechanical efficiency
(Nm)
(Nm)
(N)
(mm)
(approx. 0.9)
(approx. 0.8)
The dynamic drag torque must be taken into account for preloaded nuts.
Drive power Pa
Pa
Mta n
9550
11
Pa = drive power
Mta = drive torque
n
= speed
(kW)
(Nm)
(min-1)
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
119
Precision Ball Screw Assemblies
Calculation example
Service life
Operating conditions
Proposed ball screw: 63 x 10
The service life of the machine should
be 40,000 operating hours with the ball
screw operating 60% of the time.
F1
F2
F3
F4
=
=
=
=
50 000 N
25 000 N
8 000 N
2 000 N
at
at
at
at
n1
n2
n3
n4
=
10 min-1
=
30 min-1
= 100 min-1
= 1 000 min-1
for
for
for
for
q1 = 6%
q2 = 22%
q3 = 47%
q4 = 25%
of the duty cycle
of the duty cycle
of the duty cycle
of the duty cycle
100%
Calculation procedure
Average speed nm
nm
25
6
47
+ 22
100 10 100 30 100 100 100 1000
1
n m 304 min -1
Average load Fm for variable load and
variable speed
Required service life L
(revolutions)
The life L can be calculated by transposing the formulas 7 and 8 :
6
3 10
50000 304 100
Fm
3
Fm
8757 N
3 30 22
25000 304 100
3
3 1000
100 47
304 100 2000 304
25
100
3
L
Lh nm 60
Lh
Machine service life ·
Lh
40000
L
24000 304 60
C
8757
60
100
Machine operating hours
Ball screw operating hours
24000 h
L
437 760 000 revolutions
Basic dynamic load rating C
437 760 000
10 6
3
5
C ≈ 66492 N
Result and selection
The ball screw can now be selected
from the Dimension Tables:
e.g. ball screw,
size 63 x 10 R x 6-6, with preloaded
single nut with flange FEM-E-S,
dyn. load rating C = 88 800 N,
part number R1512 640 13.
Cross check
Service life of the selected ball screw
in revolutions
Note:
Take into account the dynamic load
rating of the screw bearing used!
3
L
88 800
8757
Lh
1042 10
304 60
10
6
4
Service life in hours Lh
6
Lh ≈ 57 167 hours
7
L ≈ 1042 · 106 revolutions
The life of the selected ball screw
assembly is thus greater than the
required service life of 24,000 hours
(including operating hours). A smaller
ball screw could therefore be selected.
120
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
Design Calculations
Critical speed nk
The critical speed nk depends on the
diameter of the screw, the type of end
fixity and the free length ln. No allowance
Example
Screw diameter = 63 mm
= 2.4 m
Length ln
End fixity II
(fixed – supported)
must be made for guidance by a nut with
backlash.
The operating speed should not reach
more than 80% of the critical speed. The
characteristic speed and the max. permissible linear speed must be taken into
account, see “Technical Notes” P. 98.
According to the graph, the critical
speed is 1850 min-1. The permissible
operating speed is thus 1850 min-1 x 0.8
= 1480 min-1.
The maximum operating speed in our
calculation example of n4 = 1000 min-1
is therefore below the permissible
operating speed.
3000
2000
1000
3000
800
2000
3000
600
125
2000
400
100
1000
300
2000
80
800
63
1000
200
600
800
50
500
1000
40
Critical speed nk (min-1)
500
3000
400
600
32
800
500
400
25
100
90
300
600
80
20
500
70
200
300
60
16
400
50
200
12 n
k
30
13 nkperm. = 0.8 · nk (min-1)
100
90
fnk
2
ln
107 (min -1)
8
200
d2
40
12
300
80
6
70
100
20
floating
fixed
fixed
ln
fixed
0.3
free
floating
fixed
floating
0.2
End fixity
I
II
III
IV
fnk value
27.4
18.9
12.1
4.3
l1
0.4
0.5
0.6
0.8
1
2
3
4
5
6
7
8 9 10
Length ln (m)
nk
= critical speed (min-1)
nkperm. = permissible operating speed (min-1)
fnk
= corrector value determined by bearing
= root diameter (mm), see Dimension Tables
d2
ln
= critical length (mm) for preloaded nut systems
l1
= threaded length (mm)
For non-preloaded nut systems, ln = l1
For screw ends form 31 (P. 62) the end fixity can be assumed
to be “fixed”.
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
121
Precision Ball Screw Assemblies
Permissible axial load on
screw Fk (buckling load)
A safety factor of g ≥ 2 should be taken
into consideration when determining the
permissible axial load.
The permissible axial load on the screw
Fk depends on the diameter of the
screw, the type of end fixity and the
effective free (unsupported) length lk.
Example
= 63 mm
= 10 mm
= 2.4 m
(fixed – supported)
According to the graph, the theoretically permissible axial load is 360 kN.
A permissible axial load on the screw
of 360 kN ÷ 2 = 180 kN is achieved
when applying the safety factor 2. This
therefore lies above the maximum
operating load of F1 = 50 kN used in
our calculation example.
3000
125
2000
100
Axial load on screw Fk (kN)
Screw diameter
Lead
Length lk
End fixity II
80
1000
800
63
600
500
50
400
300
40
200
32
25
100
90
80
70
20
60
4
14
15
Fk
f Fk
Fkperm.
d2
2
lk
50
104 (N)
40
16
30
Fk
2 (N)
12
20
Fk
Fkperm.
fFk
d2
lk
= theoretically permissible
axial load on screw
= permissible axial load
during operation
= corrector value determined by bearing
= root diameter (mm), see
Dimension Tables
= unsupported threaded
length (mm)
f Fk value
10
9
8
7
6
5
IV
10.2
III
20.4
II
40.6
I
6
4
3
2
1.0
0.9
0.8
0.7
0.6
End fixity
2.6
8
0.5
0.1
0.1
0.2
0.2
lk
0.2
0.3
0.3
0.4
0.3
0.4
0.5 0.6
0.2
0.3
0.4
0.5 0.6
0.5 0.6
0.8
0.8
1
0.4 0.5 0.6
0.8
0.8
1
1
1
2
2
2
2
3
3
3
4
4
5
4
5
6
3
5
6
6
4
5
7 8 9 10
7 8 9 10
7 8 9 10
FK
Length lk (m)
6
7 8 9 10
122
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
End Bearings, Design Notes, Mounting Instructions
Bearing design
C
For customer-machined screw ends,
please observe the design notes given
for screw ends and housings.
0.8
A
IT4
0.8
For Rexroth screw end designs
! see “End Machining Details” starting
on Page 54.
IT3
1.6
J6
1.6
D
Rexroth delivers complete drive systems,
including the end bearings. Calculations
are performed with the formulas used in
the antifriction bearing industry.
d IT6
IT5 C
IT4 A
Screw end
Accuracy
Series
Housing
Bore
d
Axial
Radial
run-out clearance
Tolerance (µm)
Bore
(mm)
(µm)
Outer
diameter
≤ 50 > 50
Width
- 250
≤ 10
P5 to
DIN 620 preloaded
+3
-5
- 10
> 10
P5 to
preloaded
DIN 620
- 10
- 11
LGF-B...
LGN-B...
LGF-C...
LGN-C...
≤ 25
preloaded
> 25
Mounting
Angular-contact thrust ball bearings
and deep-groove ball bearings
When mounting the angular-contact
thrust ball bearings LGF and LGN,
ensure that the mounting forces are
exerted only on the bearing rings. Never
apply mounting forces via the antifriction
bearing elements or the seal rings! The
two sections of the inner raceway may
not be separated during assembly or
disassembly for any reason! Tighten the
mounting screws for screw-down or
Slotted nut NMA, NMZ
The bearings are preloaded by tightening the slotted nuts.
In order to prevent settling phenomena,
we recommend first tightening the slotted nut by twice the value of the tightening torque MA and then easing the load.
Only then should the slotted nut be
2
-5
- 13
- 250
-10
-500
2.5
flange-mounted bearings in cross-wise
sequence. The mounting screws may
be subjected only to tension amounting
to a maximum of 70% of their yielding
point. The screw-down (LGF) bearings
have a groove on the cylindrical surface
of the outer raceway for disassembly.
The individual bearings of the bearing
pair series LGF-C... and LGN-C... are
marked on the cylindrical surfaces of
the outer raceways (see diagram). The
markings reveal the bearing sequence.
The sealing rings should face outward
after proper mounting.
retightened to the specified tightening
torque MA. The two set screws are then
alternately tightened using a hexagon
socket wrench.
The components are disassembled in
the reverse order, i.e. the set screws are
to be removed before the slotted nut.
The slotted nuts can be used several
Outer raceway markings
for paired bearings
times when properly assembled and
disassembled by competent personnel.
The inner raceways of the bearings are
dimensioned in such a way as to achieve
a defined bearing preload sufficient for
most applications when the slotted nut
is tightened (MA in accordance with
Dimension Table).
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
123
Precision Ball Screw Assemblies
Lubrication, Mounting the Housing
Mounting the housing SEB
Tighten the pillow block mounting
screws in crosswise sequence. See
table for max. tightening torque. The
housing nut fixes the entire bearing
unit in the housing. Use screws and
pins to fix the housing nut in place.
Note:
Take care to align the screw and ball
nut assembly, the bearings and the
guideway precisely with one another.
The Rexroth gauge (see P. 113) is a
useful aid here.
Mounting screw
O1
h
O2
Size
h
d0 x P
(mm)
8 x 2.5
12 x 5
16 x 5
16 x 10
16 x 16
20 x 5
20 x 20
25 x 5
25 x 10
25 x 25
32 x 5
32 x 10
32 x 20
32 x 32
40 x 5
40 x 10
40 x 20
40 x 40
8
8
11
11
11
11
11
14
14
14
14
14
14
14
16
16
16
16
O1
DIN 912
O2
DIN 912
O3
Tapered pin
(hardened)
O4
Straight pin
(DIN 6325)
M5 x 20
M5 x 20
M8 x 35
M8 x 35
M8 x 35
M8 x 35
M8 x 35
M10 x 40
M10 x 40
M10 x 40
M10 x 40
M10 x 40
M10 x 40
M10 x 40
M12 x 50
M12 x 50
M12 x 50
M12 x 50
M6 x 16
M6 x 16
M10 x 25
M10 x 25
M10 x 25
M10 x 25
M10 x 25
M12 x 30
M12 x 30
M12 x 30
M12 x 30
M12 x 30
M12 x 30
M12 x 30
M14 x 35
M14 x 35
M14 x 35
M14 x 35
4 x 20
4 x 20
8 x 40
8 x 40
8 x 40
8 x 40
8 x 40
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
10 x 50
Strength class of O1; O2
Nm
8.8
12.9
M5
M6
M8
M10
M12
M14
5.5
9.5
9.5
16
23
39
46
77
80
135
125
215
Locating pins
O3
O4
Lubrication of the end bearings
Bearings for ball screw assemblies are
lubricated with grease for a lifetime of
reliable service. It should be noted, however, that grease lubrication does not
facilitate the dissipation of heat in the
bearings. The bearing temperature
should therefore not exceed 50°C, particularly in machine tool applications.
Angular-contact thrust ball bearings of
the series LGF, LGN are lubricated for
life with grease KE2P-35 to DIN 51825.
For regreasing, the quantities stated in
the table below can be applied via the
lube ports provided on the bearings. The
maximum interval can be assumed to be
350 million revolutions, in which case
the larger of the two quantities should
be used. As a rule, the initial grease
quantity will therefore last for the entire
service life of a ball screw assembly.
Relubrication quantities for angular-contact thrust ball bearings
Designation
Quantity (g) Designation
LGN-B-0624
LGN-B-1034
LGN-B-1242
LGN-B-1747
LGN-B-2052
LGN-B-2557
LGN-B-3062
LGN-B-3572
LGN-A-4075
LGN-A-5090
0.3 / 0.2
0.3 / 0.2
0.4 / 0.3
0.5 / 0.4
0.8 / 0.5
1.0 / 0.6
1.0 / 0.6
1.6 / 0.9
2.0 / 1.2
2.5 / 1.5
LGF-B-1255
LGF-B-1762
LGF-B-2068
LGF-B-2575
LGF-B-3080
LGF-B-3590
LGN-C-2557
LGN-C-3062
Quantity (g) Designation
LGF-C-2575
LGF-C-3080
Quantity (g)
2.0 / 1.2
2.0 / 1.2
LGN-A-4090
LGN-A-50110
LGF-B-40115
LGF-A-50140
6.0 / 3.5
9.0 / 5.5
124
Bosch Rexroth AG
Screw drives R310EN 3301 (2004.11)
Linear Motion and Assembly Technologies
Precision Ball Screw Assemblies
End Bearings, Design Calculations
Resulting and equivalent
bearing loads
α = 60°
X
Y
Fa
≤ 2.17
Fr
1.9
0.55
Fa
> 2.17
Fr
0.92
1
α
X, Y
Fa
FaB
=
=
=
=
pressure angle
dimensionless factor
resulting bearing load
operating load
If the radial operating forces are not
insignificant, the equivalent bearing
loads are calculated according to
formula 20 .
Bearings for ball screw assemblies
are also able to accommodate tilting
moments. As a rule, the moments that
usually occur due to the weight and
drive motion of the screw do not need
to be incorporated in the calculation of
the equivalent bearing load.
F = X · Fr + Y · Fa
Fr
Fa
F
20
= radial bearing load
= resulting axial bearing load
= equivalent bearing load
(N)
(N)
(N)
Internal preload limit and
resulting bearing load
18000
Resulting bearing load Fa (N)
Angular-contact thrust ball bearings are
preloaded. The chart shows the resulting
axial bearing load Fa as a function of preload and axial operating load FaB. If the
system is primarily subject to axial operating loads, then F = Fa.
17000
d=50
16000
15000
14000
d=40
13000
d=301)
12000
11000
1)
d=25
10000
9000
8000
7000
d = 35
d = 30
6000
5000
d = 20
4000
3000
d = 17
d = 12
2000
1000
2000
1) Four
Limits
d = 10
d=6
row version
4000
6000
8000
10000
12000
14000
16000
18000
Operating load FaB (N)
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
125
Precision Ball Screw Assemblies
Average speed and average
bearing load
If the bearing is subject to varying
axial loads over time, the average axial
bearing load can be calculated using
formula 21 .
3
Fam
q1
n2 q 2
n
3
3
F2
F1 n 1
nm 100
m 100
3
Fn
nn q n
nm 100
21
If the speed varies, apply formula 22 . In
these formulas, the qi values represent
the discrete time steps in %.
nm
q
q1
n + 2 n
100 1 100 2
L
C
F
qn
n
100 n
22
Fam = resulting average
axial load
(N)
q = discrete time step (%)
nm = average speed (min-1)
If the radial load Frm varies, calculate the
average radial load in the same manner.
Service life and load safety
factor
Nominal life
The nominal life is calculated as follows:
3
Note:
23
Take into account the dynamic load
rating of the nut!
3
Lh
16666 C
n
F
24
(106 revolutions)
L = nominal life
in millions of revolutions
Lh = nominal life
in operating hours
C = dynamic bearing load rating
n = average speed
F = equivalent bearing load
(h)
(N)
(min-1)
(N)
S0 = static load safety factor
C0 = static load rating
F0 = maximum static load
(-)
(N)
(N)
Static load safety factor
The static load safety factor for machine
tools should not be lower than 4.
S0 =
Friction
C0
25
F0
The bearing friction torque MRL is primarily dependent on the bearing preload.
The influence of the operating load FaB
is insignificant as long as it does not
exceed the limits at which the bearings
have zero clearance. The bearing friction
torque MRL specified in the Dimension
Tables applies to the preload generated
by means of the slotted nut tightening
torque MA. The preloaded bearing has
the rigidity RaL. The bearing preload is
selected so as to allow it to remain
N RL
M RL n 26
9.55
effective even at high operating loads
and ensure that the bearing has zero
clearance.
The bearing friction torque MRL is measured at a speed of n = 5 min-1. The
friction power loss NRL of the bearing
can be calculated using formula 26 .
The various operating speeds ni must
be incorporated in the heat balance as
a function of their discrete time steps qi.
NRL = friction power loss
n = speed
MRL = bearing friction torque
(W)
(min-1)
(Nm)
126
Bosch Rexroth AG
Linear Motion and Assembly Technologies
Screw drives R310EN 3301 (2004.11)
Precision Ball Screw Assemblies
Bosch Rexroth AG
Linear Motion and Assembly Technologies
D-97419 Schweinfurt / Germany
Telephone +49-9721-937-0
Fax
+49-9721-937-288
e-mail
screws.brl@boschrexroth.de
Alternatively, technical design calculation can be
performed by the customer with our WINKGT software.
Design Calculation Service Form
Application:
New design
To: Precision Ball Screw
Assemblies Department
Revised design
Operating conditions
Loads
(N)
Speeds
(1/min)
Discrete time steps (%)
F1
=
at n1
=
for q1
=
F2
=
at n2
=
for q2
=
F3
=
at n3
=
for q3
=
F4
=
at n4
=
for q4
=
F5
=
at n5
=
for q5
=
F6
=
at n6
=
for q6
=
Average load (P. 118)
Average speed (P. 118)
Sum of time steps
Fm
nm
Q
=
=
Maximum static load:
N
Required service life
Operating hours or
Screw end fixity
fixed
horizontal
floating
floating
=
100%
x 106 ball screw revolutions
vertical
free
Selected:
Installation conditions (enclose drawings/sketches if possible!)
fixed
I
fixed
II
floating
III
fixed
IV
Drawing enclosed
(PP. 124/125)
Type of lubrication:
Operating temperature:
°C -
min/max.
/
°C
Exceptional operating conditions:
Sender
OEM
User
Distributor
Company
Name
Address
Department
Telephone
Fax
e-mail
R310EN 3301 (2004.11) Screw Drives
Linear Motion and Assembly Technologies
Bosch Rexroth AG
127
Precision Ball Screw Assemblies
Bosch Rexroth AG
Linear Motion and Assembly Technologies
D-97419 Schweinfurt / Germany
Telephone +49-9721-937-0
Fax
+49-9721-937-288
e-mail
screws.brl@boschrexroth.de
To: Precision Ball Screw
Assemblies Department
Fax Inquiry/Order Form
Note: The processing of Inquiries/Orders based on customer drawings is also possible of course.
Example of an order
Ball screw assembly SEM-E-S 20 x 5R x 3 - 4 1 2 T7 R 81Z120
Screw
Ball screw assembly
SN
Screw
Ball screw assembly
Screw
SN
Ball screw assembly
Screw
X X T7 R 00T200
20 x 5R x 3
SN
SN
x
x
x
x
x
x
x
x
x
x
x
x
41Z120 1250 1 1
00T200
1250 1 0
-
X X
-
X X
-
X X
Comments:
Enclosures:
Quantity
Drawing
Other
Order for ………… units, ………… per month, ………… per year, per order or …………………………
Comments ……………………………………………………………………………………………………………………….
Sender
OEM
User
Distributor
Company
Name
Address
Department
Telephone
Fax
e-mail
Bosch Rexroth AG
Linear Motion and
Assembly Technologies
Ernst-Sachs-Strasse 100
D-97424 Schweinfurt, Germany
Telephone +49-9721-937-0
Telefax
+49-9721-937-275 (general)
Telefax
+49-9721-937-288 (direct)
www.boschrexroth.com/brl
e-mail: info.brl@boschrexroth.de
© Bosch Rexroth AG 2004
Printed in Germany – p 2005/xx/x/X
Precision Ball Screw Assemblies
End Bearings and Nut Housings
R310EN 3301 (2004.11)
Printed on chlorine-free bleached paper
Subject to technical modifications.