setting the standard
BFK458 spring-applied brake
The versatile modular system
1.5 – 600 Nm
www.intorq.com
We set the standards
The INTORQ brand stands for reliable brake
solutions of the highest standard. Whether in
cranes, wind turbines or industrial trucks – INTORQ
products are used in the most diverse of applications.
Rely on us to create the right solution for your drive
– individually and reliably.
With its high number of variants, INTORQ's range
of modular products is used in many motors and
geared motors and has set standards worldwide.
With the establishment of facilities in Shanghai,
Atlanta and Pune we have also consistently expanded
our international presence. So wherever you are in
the world, our network of sales and service staff is
always close at hand to support you.
INTORQ at a glance
❙ Electromagnetic brakes and clutches
❙ Configurable standard solutions and
custom-made solutions
❙ Development and production centred in Aerzen
❙ Fast delivery times worldwide thanks to
production sites in Shanghai, Atlanta and Pune
❙ 47 million euros a year sales volume
❙ 800,000 units a year
❙ 10,000 square metres production area
❙ 230 employees
❙ Market leader with 63 sales partners in 49
countries
INTORQ I BFK458 spring-applied brake
BFK458 – The modular system
This modular system forms the basis for a product
range that offers versions tailored for almost
any task. The BFK458 spring-applied brake, as a
standard product, can be used anywhere, but its
modular structure also meets the requirements
of specific industries. Its strength lies in its
versatility.
The greatest degree of flexibility is achieved
for a broad range of applications by combining
the basic modules with specific modules. This
catalogue is designed to assist you in selecting
and ordering your desired spring-applied brake
quickly and easily.
Fields of application
Electromagnetically released spring-applied
brakes are used wherever masses in motion
have to be decelerated as quickly as possible
or where masses must be held in a defined
position. The braking force is applied
by tappet springs. Thus the braking torque
generated by friction locking remains available
in the deenergised status – even in the event
of mains failure. The brake is released
electromagnetically.
The main components of the modular system
are the two basic modules E (adjustable braking
torque) and N (non-adjustable braking torque).
Wind turbines
Cranes
❙ Brake motors
❙ Conveyors
❙ Cranes
❙ Storage technology
❙ Industrial trucks
❙ Wood working machines
❙ Stage machinery
❙ Vehicles for the disabled
❙ Automation technology
❙ Controlled drives
❙ Gate drives
❙ Escalators
Industrial trucks
Stage machinery
4I5
INTORQ I BFK458 spring-applied brake
INTORQ BFK458-òòò product key
B
F K
4 5 8
òò
-
ò
Brakes product group
Spring-applied brake product family
Type
Size
Design
Size
06, 08, 10, 12, 14, 16, 18, 20, 25
Not coded:
Supply voltage, hub bore, options
Stator design
E –Adjustable (braking torque can be reduced
using torque adjustment ring)
N – Non-adjustable
L – Non-adjustable, LongLife design
Friction plate
Flange
Connection
flange
(double
brake)
Stator, complete
Basic module E
Hub
Cover ring
Hub
Hand release
Rotor
Sealing plug
Plug
Shaft
sealing ring
Stator, complete
Basic module N
Centring flange
(tacho flange)
Contents
Product key�����������������������������������������������������4
Brake cover������������������������������������������������������21
List of abbreviations���������������������������������������5
Microswitch ����������������������������������������������������22
Product information����������������������������������������6
Terminal box ���������������������������������������������������23
Functional principle����������������������������������������7
Rectifier type code ������������������������������������������24
Spark suppressor 14.198.00����������������������������24.
Technical data
Bridge rectifier + half-wave rectifier�������������������25
Rated torques����������������������������������������������������8
Connection plans���������������������������������������������29
Basic module E �����������������������������������������������10
Supply voltage selection table���������������������������31
Basic module N������������������������������������������������12
2 x basic module N + connection flange ��������14
Dimensioning
Basic module N + tacho flange�������������������������15
Basics��������������������������������������������������������������32
Rated data�������������������������������������������������������16
Example calculation�����������������������������������������33
Operating times ��������������������������������������� 16/17
Service life and wear����������������������������������������18
Overview��������������������������������������������������������34
Accessories
Hand release/flange/friction plate����������������� 19
Centring flange/connection flange/cover ring 20
List of abbreviations
PN
[W]
Rated coil power at rated voltage and 20°C
UN
[V DC] Rated coil voltage
MK
[Nm] Rated torque of the brake at a relative
speed of 100 r/min
ML
[Nm] Load torque, torque that the static load
produces at the motor shaft
∆n0 [r/min] Initial relative speed of the brake
JL
[kgm2] moment of inertia of the load, referred to
referred to the output shaft (load shaft)
Q
[J]
Heat/energy
QE
[J]Maximum permissible friction work per
switching cycle, thermal rating of the brake
Qsmax [J]
maximum permissible friction work during
cyclic switching, depending on the
operating frequency
Sh
[1/h] Operating frequency, the number of
repeated operations per unit time
Shmax [1/h] Maximum permissible operating frequency,
depending on the friction work per operation
sLN [mm] Rated air gap
sHL [mm] Hand-release air gap, setting dimension
of hand-release
t1
[s]
Engagement time, the total of the
reaction delay and torque rise time
t1 = t11 + t12
t2
[s]
Disengagement time, time from switching
the stator until the torque has reduced
to 0.1 MK
t3
[s] Slipping time to standstill (after t11)
t11
[s] Delay time when connecting,
time from disconnecting the voltage until
the torque begins to rise
t12
[s] Rise time of braking torque, time from
beginning of rise of torque until braking
torque is reached
6I7
INTORQ I BFK458 spring-applied brake
INTORQ 155-1
Product information
E318895
A powerful and complete range
❙ 9 sizes
❙ Standard voltages [V DC] 24, 96, 103, 170,
180, 190, 205
❙ Graduated torque range from 1.5 - 600 Nm
❙ Short delivery times for the complete range
thanks to optimised logistics
❙ Enclosure according to IP00 ... IP55, depending
on the special operating conditions, see
technical data sheet
❙ ATEX: In accordance with Group II, Category 3G/D,
the product is suitable for use in potentially
explosive atmosphere of zone 2 (gases and
vapours) and zone 22 (dust) for steady-state
operation (holding or parking brake) and
temperature class T4.
Options
❙ Hand release for all sizes, both directions can be
used for release and mounting (exception: tacho
brake)
❙ Noise-reduced designs
❙ Various types of corrosion protection and
enclosures
❙ Microswitches used to monitor air gap and
wear (size 12 and above)
❙ Monitoring of Hand release function
❙ Non-standard voltages and bores on request
❙ Pulse width modulation (PWM), sizes 06 – 18
Partial discharge free brake has been developed
for operation with the pulse width modulated
DC bus voltage of a frequency inverter
Rated coil voltage UN=103V DC
Versatile
❙ Modular structure for virtually all applications
LongLife design BFK458-L
❙ Armature plate with low backlash and reinforced
torque support
❙ Tappet springs with guide pins for protection
against shearing forces
❙ Aluminium rotor with toothed intermediate ring:
friction lining and tooth system with low rates
of wear
Torque transmission
❙ Designed for dry running
Quick and easy mounting
❙ Preset air gap
❙ Special machining of the friction surfaces
ensures that the rated torques are achieved after
very few switching operations
❙ No locating bearing is required on the brake
Durable
❙ The insulation system to temperature class
F (155°C) ensures that the winding has a
long service life
❙ The brakes are designed for 100% duty time
(current applied to the brake)
Low maintenance
❙ Long rotor/hub connection with low rate of wear
and a tried-and-tested involute gear
❙ Asbestos-free and solvent-free friction lining
with low rate of wear
Reliable
❙ The certified ISO 9001 and ISO 14001
quality assurance system provides the basis for
consistently high-quality products
❙Production and testing to VDE 0580
up to -40˚C
CCV (Cold Climate Version), temperatureresistant up to -40˚C
❙ CCV design configurable for all sizes in the
modular system
- Use of chrome-plated friction surfaces
(armature plate and flange)
- Use of temperature-resistant fixing screws is essential
❙ The following components are also approved for
use up to -40˚C
- Rotor with sleeve (noise-reduced)
- Hand release
- Terminal box
- Microswitch
- Caps E and N
- Shaft sealing rings (available on request)
Functional principle
Basic module E
Fixing screw
Stator
Adjustment ring
Hand release
(optional)
Basic module N
Sleeve bolt
Fixing screw
Flange
Stator
Hand release
(optional)
Sleeve bolt
Rotor
Rotor
Hub
Thrust piece
Hub
Fixing screw
Fixing screw
Armature plate
Armature plate
Flange
Fixing screw
INTORQ BFK458 spring-applied brakes are singledisk brakes with two friction surfaces. When
deenergised, several springs are used to generate
the braking torque through friction locking. The
brake is released electromagnetically. During
braking, the springs use the armature plate to
press the rotor (which can be shifted axially on
the hub) against the counter friction face. When
the brakes are applied, an air gap sL is present
between the armature plate and the stator. The
stator's coil is energised with DC voltage in order
to release the brake.
BFK458, redundant
and noise-reduced
Fixing screw
The resulting magnetic flux works against the
spring force to draw the armature plate to the
stator. This releases the rotor from the spring
force and allows it to rotate freely. Basic module E
supports the use of the torque adjustment ring to
reduce the braking torque.
BFK458, with terminal box
BFK458-L, LongLife for high
switching cycles
8I9
INTORQ I BFK458 spring-applied brake
Technical data
Rated torques
The basic modules E and N are available in the
graduated torques listed below. A pole shim
(brass film) must be placed between the stator
and the armature plate if you want to achieve
short engagement times at low torques. INTORQ
brakes are dimensioned so that the specified rated
torques can usually be achieved reliably after a
short running-in period. However, as the organic
friction linings used do not all have identical
properties and because environmental conditions
can vary, deviations from the specified braking
Size
06
08
torques are possible. These must be taken into
account in the form of appropriate dimensioning
tolerances. Increased breakaway torque is common
in particular after long downtimes in humid
environments where temperatures vary. If the brake
is being used on friction surfaces provided by the
customer, the rated torque must be checked. If the
brake is to be used solely as a holding brake without
dynamic load, the friction lining must be reactivated
at regular intervals.
10
12
14
16
18
20
25
80 E
1.5 E
3.5 N/E/L
25 N/E
35 N/E
65 N/E
115 N/E
175 N/E
2 N/E/L
4E
35 N
45 N/E
80 N/E
145 N/E
220 N
7 N/E/L
14 N/E/L
2.5 N/E/L
5 N/E/L
9 N/E/L
18 N/E/L
40 N/E
55 N/E
100 N/E
170 N/E
265 N/E
Rated torque MK [Nm]
of the brake, rated value at a
relative speed of 100 r/min
3 N/E/L
6 N/E/L
11 N/E/L
23 N/E/L
45 N/E
60 N/E
115 N/E
200 N/E
300 N/E
3.5 N/E/L
7 N/E/L
14 N/E/L
27 N/E/L
55 N/E
70 N/E
130 N/E
230 N/E
350 N/E
4 N/E/L
8 N/E/L
16 N/E/L
32 N/E/L
60 N/E
80 N/E
150 N/E
260 N/E
400 N/E
4.5 N/E
9 N/E
18 N/E
36 N/E
65 N/E
90 N/E
165 N/E
290 N/E
445 N/E
5E
10 E
20 E
40 E
75 N/E
100 N/E
185 N/E
315 N/E
490 N/E
23 N/E
46 N/E
80 N/E
5.5 E
11 E
6 N/E
12 N/E
❙ N ... Braking torque for the N design
(without torque adjustment ring)
❙ E ... Braking torque for the E design
(with torque adjustment ring)
❙ L ... LongLife design
perating brake
O
(sLmax approx. 2.5 x sLN)
Standard braking torque
olding brake with emergency
H
stop (sLmax approx. 1.5 x sLN)
105 N/E
200 N/E
345 N/E
530 N/E
125 N/E
235 N/E
400 N/E
600 N/E
Basic module L, LongLife design
The LongLife design can be configured for sizes
06 to 12 in combination with the specified
rated torques in the modular system. The stator
corresponds to design N; bores and built-on
accessories are not possible at the rear side.
It is not possible to configure a microswitch for size 12.
Basic module E, reduced rated torque
The rated torque on basic module E can be
reduced using the torque adjustment ring
located in the stator. The torque adjustment
ring may only be unscrewed to a maximum
dimension of h1max (see table on page 11).
It should be noted that the engagement and
disengagement times change in accordance with
the rated torque. Torque reduction is independent
of the rated torque used.
Size
06
08
10
12
14
16
18
20
25
Torque reduction
per detent position [Nm]
0.2
0.35
0.8
1.3
1.7
1.6
3.6
5.6
6.2
Noise-reduced designs
The noise reduction required in many applications can
be achieved in two ways:
1. Impact-noise-reduced armature plate
The brake's operating noise can be minimised using
special damping elements, which are installed
between the pole face and the armature plate as
shock absorbers.
2. Noise-reduced aluminium rotor
The rotor with plastic sleeve reduces the rattling
noises in the rotor/hub connection. At the
same time, this increases the service life of this
connection.
Features and advantages
❙ Low rate of wear between rotor and hub
❙ Recommended for frequency inverter operation
❙ Noise-reduced design
❙ Also available in combination with CCV
INTORQ I BFK458 spring-applied brake
3
4
5
2
3
4
5
B
B
C
C
Hand release
mounted
in standard






direction
  
  
  
  
C













β
β

6
6



  
  
  
B
Without
counter 5friction surface,


hand
release (as option)








β
β

β
β
4
  
Basic
module E (with2torque adjustment ring)
3
1




 
 
6
  
  
  
A
A
2
1
  
A
1
0
40 50
40 50
0 10 0 10 2010 20 3020 30 4030
mm
mm
mm 50
Technical data
  
10I11






D
D
D
  
E
E







a
a
a
E
F
F
F



Gr.
b
d J7 vorg.
d H7 Standard
d1
d2
d5
Size
b
dH7 2)
d5
dd5
Gr.
b
ddJ7
J71)vorg.
d H7 Standard d1
d1d2 d2
6j7
spec. standard10/11/12/14/15
06
88
3xM4
72
91
Gr.
b
d J710
vorg.
d H7 Standard
d1
d2
d5
06
88
10/11/12/14/15 3xM4 3xM5
3xM4
72
91
08
11/12/14/15/20
109
06 106,5
88
10 10 10/11/12/14/15
72 90
91
87
06
88
10
10/11/12/14/15
72
91
08
3xM5
90
109
10
132
11/12/14/15/20 3xM5 3xM4
3xM6
08 106,5
106.5 10 10 11/12/14/15/20
90 112
109 135,4
105
08
10
11/12/14/15/20
3xM5
90 135,4
109
10 106,5
132
3xM6 112
12
152
14 11/12/14/15/20
20/25
132
155
10
132
10
3xM6
112 135.4 130
10
132
10
11/12/14/15/20
3xM6
112
135,4
12
152
14
20/25
132 171
155
14
169
20/25/30
3xM8 145
ermerk
ISO 16016
beachten.
Copyright
reserved.
utzvermerk
Schutzvermerk
ISO 16016
ISO
16016
beachten.
beachten.
Copyright
Copyright
reserved.
reserved.
12
G
G
G
12
14
16
14
14
16
18
16
16
18
20
18
18
20
25
20
25
20
25
25
152
152
169
187,6
169
169
187,6
218,6
14
20/25
3xM6
132
14
20/25
3xM6
20/25/30
15
25/30/35/38
3xM8
14 14 20/25/30 20/25/30
3xM8 3xM8
145
15
25/30/35/38
20
30/35/40/45
6xM8
3)
3xM8
170
187.6
15
25/30/35/38
187,6
15
25/30/35/38
3xM8
218,6
20
30/35/40/45
6xM8
252,6
25
35/40/45/50
6xM10
218,6
30/35/40/45
6xM8
218.6 20 20
196
252,6
25
35/40/45/50 6xM86xM10
297,6
30 30/35/40/45
40/45/50/55/60/65/70
252,6
35/40/45/50 6xM10
6xM10
297,6
30 35/40/45/50
40/45/50/55/60/65/70
252.6 25 25
230
297,6
30
40/45/50/55/60/65/70
6xM10
3)
297.6 30
40/45/50/55/60/65/70
6xM10
278
155
150
132
145 155
171
170
196
171 165
145
170 171
196
196
223
196 196
190
170
196
223
230
259
H
H
H
❙ 3) Ø 38 and Ø 70 mm, keyway in accordance with DIN 6885/3 P9
❙ 4) Hand release angle tolerance +3°
❙ 5) Recommended lever length for 1.5 MK
d7
d8 d9 H9 d10 d11 d12
d13
d17
d13
87j7 d7
87 d8
52 d924
31 d11
8 d12
13 d13
9,6
d6
H9 d10
87 52 105
8724 H960
5231 26
24
31 9.6
41
8
13
87105
8
13
3x4.4 9,6
86
87
87
52
31
8
13
9,6
10560 130
105
6041 24
26
41 9.6
130
35
45
10
13
10
13
3x5.5 12
106
105
26 H968
105
105
60
26
41
8
13
9,6
130
130
68
35
45
10
12
150
150
82
40
52
13
H9
45
10
13
12
3x6.6 132
130 68
35
130
35
45
150 130
150 68
82
40
52 10
165
165
92
52
55
12 13
24 12
14
10
13
12
3x6.6 153
150 82
40 H9 52
150
82
40
52
165 150
165 102
92
55 10
190
190
52
70
12 13
24 12
14
12
24
14
3x9
169
165
92
52 H99255 52
165
55
190 165
190 116
102 62
70 12
217
217
77
14 24
24 14
15
H9 70
190
102
52
12
24
14
3x9
194
190
70
217
217
116
62
77
14 24
15
254 190
254 102
135 52
72
90 12
24 14
17
196
217
116
77
223 223
217 217
62 H9
230
259
254116217
254
135
278
308
302
302
180
230
254
135
278
308
302135254
302
180
90
259 259
254 254
72 H8
278 308
302 302 H8
180
308
302
❙ 1) Pilot bored without keyway
❙ 2) Standard keyway in accordance with DIN 6885/1 P9, selection of the shaft diameter
dependent upon type of load (see the operating instructions)
d6 j7
d7d6 j7d8 d7d9 d8d10d9 dH9
d12 d11
d13 d12
d16
11 d10
302
165
85
120
62
14
72
85
72
85
14
85
16
77
24
90
120
90
120
24
14
15
16
24
18.4
120
14
16
17
16
d16
d18
d16
3x4,4
d16
3x4,4
3x5,5
36
3x4,4
3x5,5
3x6,6
45
3x5,5
3x6,6
52
3x6,6
3x9
68
d17 d18
di
di d18
da
d17
di
86 d18
36
40
d17
di
86
3660 56,1
40
106
45
40
86 36
40
106
132
5276.5 56,1
66,1
56.1 45
106
132 45
52 56,1
66,1
153
68
70,1
66.1
95
132
52
153 78
68 66,1
70,1
169
80,1
70.1
115
3x6,6
70,1
169
78
80,1
3x9 153
194 68
90 104,1
78
80.1
124
3x9
78
80,1
194
90
104,1
4x9 169
129,4
90
104.1 90149 104,1
3x9
194
4x9
129,4
4x11
148,1
6)
24
15
4x9
-129.1
--174 129,4
4x9
17
4x11
148,1
24 18,4
6x11
199,1
24
17
4x11
-148.1 - 206 148,1
6x11
199,1
4x11 6)18,4
24 18,4 6x11
199,1
6x11
-
-
199.1
254
❙ 6) The thread in the mounting surface is offset by 30° in relation to the centre axis of the
manual release lever
❙ Recommended ISO shaft tolerances: up to Ø 50 mm = k6
over Ø 50 mm = m6
❙ Dimensions in mm
da
da
60
da
60
76,
60
76,
95
76,
95
11
95
11
12
11
12
14
12
14
17
14
17
20
17
20
25
20
25
25
8
7
8
9
With flange, hand release and
seal ring (as option)





β
β

10
11
With flange, hand release
(as option), mounted


on flange




12
With friction plate,
hand release (as option)





A
Hand release
mounted in a
rotated position
B
Not possible for sizes
18 and 20






C


D


E
Size
h
h1
h2
h3
h4
h1
h2
h3
h4
min.min h1max
max.
h5 5)
h5
40
06
36.3
36,3
39.3
43.2
1
1
6
6
15,8
15.8
107
107
-
-
54
54
56,1
08
76,5
42.8
42,8
46.8
46,8
50.8
50,8
11
7
7
16.3
16,3
116
116
–-
39,3
43,2
h5 standard
max
standard h5max.
h6
da
60
h
h1
di
h6
h7
h8
h7
h8
23
23
32,8
32.8
63
63
23
23
h9
h11
h9
h11
56
56
41.3
41,3
65
65
l
l1
SLN
β b 4)
a
l
l1
SLN
1,5
1.5
18
18
400
400
0,2
1.5
1,5
20
20
400 0,2
0.2 25°25°
400
10° 10°08
0.2
a
+5°
25°
Gr.
66,1
1095
48.4
48,4
52.4
52,4
55.9
55,9
22
9
9
27.4
27,4
132
132
--
73.3
73,3
23
23
42.4
42,4
77.8
77,8
1.5
1,5
20
20
400 0,2
0.2 25°25°
400
10° 10°10
70,1
115
12
54,9
54.9
58,9
58.9
67,5
67.5
22
9
9
29,4
29.4
161
161
--
85
85
23
23
47,4
47.4
88
88
1,5
1.5
25
25
400
10° 10°12
400 0,3
0.3 25°25°
80,1
124
14
66,3
66.3
71,3
71.3
77,3
77.3
11
11
33,8
33.8
195
195
–-
97,9
97.9
1,5
1.5
30
30
16
72.5
77.5
1.5
30
18
83.1
128
-
35
20
97.6
148.5
-
25
175
-
104,1
129,4
148,1
199,1
149
174
206
254
72,5
22
85,5
85.5
2,25
11
89.1
97,1
97.1
3
3
104.6
114.6
106,7 115,7 127,7
3.5
3,5
106.7
115.7
127.7
4.5
83,1
97,6
77,5
89,1
104,6 114,6
2.25
4,5
37
240
11
41,6
279
11
48,1
11
11
11
37
41.6
12.5
114
1,5
394
125
32
59,1
128
-
319
416
146
32
68,6
148,5
445
501
170
32
445
57.7
–
394
416
501
111
125
146
170
32
32
32
32
Bea/drn
Gepr/chkd
Norm/appr
5
101
101
53,5
319
12,5 57,7
50
50
32
279
48.1
32
32
111
240
-
-
xxxxxx
01.11.2012 STR
53.5
59.1
68.6
88,7
88.7
114
175
Datum/date
Name/name
01.11.2012
01.11.2012
Strate
Dittrich
CAD
-
-
400
10° 10°14
400 0,3
0.3 25°25°
30
600
0,3
25° 10° 16
35
600
0,4
25° 10° 18
40
600
0,4
25° 10° 20
40
50
50
F
10°
25° 10° 06
600
600
600
600
600
0.3
0.4
0.4
0,5
0.5
25°
10°
25°
10°
25°
10°
25°
10°
G
25° 10° 25
Benennung/name of drawing
Maßblatt BFK458-E
H
Standardausführung / Baugröße 06 - 25
Zeichnungsnummer/drawing no.
M14.0271
Blatt/sheet
1
12I13
INTORQ I BFK458 spring-applied brake
Technical data
1
40 mm 50
5
4
A







β
β

10
6
Without counter friction face,
hand
release (as option)





20
30
3
2
Basic module N (without torque adjustment ring)
0
Hand release

mounted
in standard
B
on flange





C










D



a
E
F
Size
b
Gr.
utzvermerk ISO 16016 beachten. Copyright reserved.
dH7 2)
d1
d H7 Standard
d2
d1
d3H7 d5
d7
d10
d11
87
91
31
87
d12
d13 d14 4) d15
d10 d11 d12
d13
d16
d17 d18
d14
d15
di
da
d16
d17 d18
06 88 8810
10/11/12/14/15
72
8
87
13
31
9.6
8
4xM4 37.7 3x4.4 86
37,7 403x4,460 86
36
08
10
08 106.5
106,5
11/12/14/15/20
3xM5
10
11/12/14/15/20
90
105 105
41 105
8
3xM532 90 109 32105 109
13
41
9.6
8
4xM5
106 45
13 499,6 3x5.5
4xM5
49 56.1
3x5,576.5106
45
10
10 132 13210
11/12/14/15/20
3xM6
10
11/12/14/15/20
112
130 130
45 130
10
3xM642 112135 42130 135
13
45
12 4xM5
132 52
10
13 5412 3x6.6
4xM5
54 66.1
3x6,695 132
52
12
12 152 15214
14
20/25
3xM650 132155 50150 155
132
150 150
52 150
10
52
13
68
14
14 169 16914
20/25/30
3xM860 145171 60165 171
165 165
165 55
12
55
24
70
10
13 6412 3x6.6
4xM5
64 70.1
3x6,6115153
12 4xM5
153 68
12
24
14
4xM6
75
3x9 169
14 4xM6 75
3x9
169 78
80.1 124
12 24
14
4xM6
85
3x9 194
16
187,6
3xM4
10/11/12/14/15
10
20/25 3xM6
20/25/303xM8
14
15
25/30/35/38
20
30/35/40/45
25
35/40/45/50
187.6 15
25/30/35/383)
218.6 20
30/35/40/45
20
25
25 252.6
297,6
35/40/45/50
25
297.6 30
18
18
20
218,6
252,6
30
3xM425 72 91 2587
145
3xM8 170
68
196 190 190
190
70
12
217
77
14
24
9,6
170
68
196
6xM8
6xM8 196
196
75
223
75
223 217 217
77
14
6xM10 230
85
259 254 254
90
14
24
18.4 4xM10 140
217
190
13
3xM8
24
6xM10 230 85
254 254 90
14
24
40/45/50/55/60/65/70
6xM10 278259115
308 302 302
120
40/45/50/55/60/65/703) 6xM10
278
115
308
❙ 1) Pilot bored without keyway
❙ 2) Standard keyway in accordance with DIN 6885/1 P9, selection of the shaft diameter
dependent upon type of load (see the operating instructions)
H
d6j7
d2 d3 H7 d5 d6 j7 d7
06
16
G
dJ7 1)
b spec.d J7
vorg.
standard
❙ 3) Ø 38 and Ø 70 mm, keyway in accordance with DIN 6885/3 P9
❙ 4) Bores are made on customer request for sizes 06 – 12
❙ 5) Hand release angle tolerance +3°
302
302
120
16
4xM4
14
4xM6 85
3x9
15
4xM8 95
4x9 7) -
24
15
24
17
36
194 90
4xM8
-
95
4xM10 110
104.1 149
-
-
-
-
4x11
-
-
129.4 174
199.1 254
❙ 6) Recommended lever length for 1.5 MK
❙ 7) The thread in the mounting surface is offset by 30° in relation to the centre axis of the
manual release lever
❙ Recommended ISO shaft tolerances: up to Ø 50 mm = k6
over Ø 50 mm = m6
❙ Dimensions in mm
90
4x9
17 4xM10 110 4x117) 16
24 18,4 4xM10 -140 148.1
6x11206 6x11
78
-
7
9
10
B
Not possible for sizes
18 and 20






C


D


E
Size
d17 d18
h
h2
h3
h4
di
da
h
h2
h5
h3standard
h4
h56)
h6
h7
max.
h5 standard h5 max
h8
–
23
32.8
56
1.5
18
23
41.3
63
65
1.5
20
h6
h9
h7
h11
h8
l
h9
1
6
15.8
08
42.8
1
7
16.3
6,6 132 10
52
56,1
48.4
66,1
2
9
48,4
27.4
77.8
1.5
42,4
20
77,8
2115
954,9
29.4
2
132 73.3
161 85
42.4
73,3
54.9
70,1
9132 27,4 –
9161 29,4 –
-23
6,6 153 12
68
-23
47.4
85
88
23
1.5
47,4
11195 33,8 –
195 97.9
-32
97,9
50
32
101
240 111
11279 41,6 394 279 125
11 48,1
319
-32
111
53.5
32
114
394
32
125
59.1
32
86
5,5 106
36
45
40
60
76,5
95
36,3
42,8
6
15,8
1
7
16,3
2
169 14
78
80,1
66.3
2124
66,3
11
2
33.8
9
194 16
90
18
104,1
72.5
149
2.25
72,5
11
2,25
37
129,4
83.1
174
3
83,1
11
3
41.6
97.6
3.5
11
106.7
4.5
11
-
-
-
20
-
25
148,1
199,1
206
254
97,6
106,7
12.5
107
1
9
11
A
rotated position
36.3
9
12
With friction plate,
hand
release (as option)





mounted in a
06
4,4
11
With flange, hand release
(as
option), mounted


on
flange




Hand release

6
8
With flange, hand release and
seal ring (as option)





β
β

3,5
48.1
4,5
57.7
116
11240 37
319
12,5
445
57,7
–
107
116
54
63
–
416
501
445
146
170
-
416
501
32
54
0.2
25°
0.2
25°
a
β
+5°
Gr.
20
25
88
400
1,5
25° 25° 10°
25 0.3400 0,3
10°
50
1.5
101
30
1,5
400
30 0.3400 0,3
10° 14
25° 25° 10°
53,5
1.5
114
30
1,5
600
30 0.3600 0,3
10° 16
25° 25° 10°
32
128
59,1
-
128
35
-600
68.6
148.5
-
35 0.4600 0,4
25° 10°
10° 18
25°
40 600 0,4 25° 10° 20
88.7
175
-
170
23
32
32
01.11.2012 STR
41,3
68,6
88,7
148,5
40
175
50
Datum/date
Name/name
01.11.2012
01.11.2012
Strate
Dittrich
CAD
400
400
1,5
-
600
-
600
F
10°
1,5
Gepr/chkd
xxxxxx
SLN
65
Norm/appr
-
b 5)
a
l1
18
Bea/drn
5
SLN
1,5
23
32,8
400
l
56
146
23
l1
h11
400 0,2
25° 1 0° 06
400 0,2
25° 10° 08
10°
25°
20 0.2400 0,2
25° 10°
10° 10
50
0.4
25°
0.5
25°
600 0,5
12
G
10°
25° 10° 25
10°
Benennung/name of drawing
Maßblatt BFK458-N
H
Standardausführung - Baugröße 06 - 25
Zeichnungsnummer/drawing no.
M14.0271
Blatt/sheet
2
14I15
INTORQ I BFK458 spring-applied brake
Technical data
2 x basic module N + connection flange
2
6
7
8
9
10
11
A
0

10
20
30
40 mm 50
1
Double brake as redundant braking system,
suitable for use in stage machinery and many
5
4
other areas3 of application.
Available with
hand
release as an option.

B











C
D







 
E
Schutzvermerk ISO 16016 beachten. Copyright reserved.
F
G
Gr.
d J7 vorg.
d H7 Standard
d1
06
10
10/11/12/14/15
3xM4
72
25
08
10
11/12/14/15/20
3xM5
90
32
105 4xM5
10
10
11/12/14/15/20
3xM6 112
42
12
14
20/25
3xM6 132
14
14
20/25/30
16
15
25/30/35/38
18
20
20
25
25
Size
H
30
d2 d3 H7 d6 j7
d14
d15
4xM4
37,7
49
130 4xM5
54
50
150 4xM5
64
3xM8 145
60
165 4xM6
3xM8 170
68
190 4xM6
30/35/40/45
6xM8 196
75
35/40/45/50
6xM10 230
85
40/45/50/55/60/65/70 6xM10 278
dJ7 1) dH7 2)
spec. standard
d1
d2
d3H7
115
da
h
h2
h14
h15
l
l1
40
60
36,3
1
12
84,6
18
400
0,2
25° 06
56,1
76,5
42,8
1
12
97,6
20
400
0,2
25° 08
66,1
95
48,4
2
13
109,8
20
400
0,2
25° 10
70,1
115
54,9
2
16
125,8
25
400 0,3
25° 12
75
80,1
124
66,3
2
17
149,6
30
400
0,3
25° 14
85
104,1
149
72,5
2,25
20
165
30
600
0,3
25° 16
217 4xM8
95
129,4
174
83,1
3
20
186,2
35
600
0,4
25° 18
254 4xM10
110
148,1
3,5
20
215,2
40
600
0,4
25° 20
87
302 4xM10
d6j7
d14
140
d15
di
199,1
di
206
254
da
97,6
106,7
h
4,5
25
h2
238,4
h14
50
2
08
10
10
10
11/12/14/15/20
12
14
20/25
14
14
20/25/30
3xM8
145
60
165
4xM6
16
15
25/30/35/383)
3xM8
170
68
190
4xM6
18
20
30/35/40/45
6xM8
196
75
217
4xM8
95
20
25
35/40/45/50
6xM10 230
85
254
4xM10 110
30
40/45/50/55/60/65/703)
6xM10 278
115
302
4xM10 140
25
l
25° 25
l1
SLN 02.11.2012a
10/11/12/14/15
3xM4
5
84.6
4
Name/name
Strate
Dittrich
25
87
4xM4
37.7 40
60
36.3 1
12
90
32
105
6
4xM5
49
7
56.1
76.5 42.8 18
12
3xM6
112
42
130
4xM5
54
66.1
95
48.4 2
13
109.8 20
3xM6
132
50
150
4xM5
64
70.1
115
54.9 2
16
125.8 25
75
80.1
124
66.3 2
17
149.6 30
400
0.3
25°
85
104.1 149
72.5 2.25
20
165
30
600
0.3
25°
129.4 174
83.1 3
20
186.2 35
600
0.4
25°
148.1 206
97.6 3.5
20
215.2 40
600
0.4
25°
199.1 254
106.7 4.5
25
238.4 50
600
0.5
25°
5
❙ 1) Pilot bored without keyway
❙ 2) Standard keyway in accordance with DIN 6885/1 P9, selection of the shaft diameter
dependent upon type of load (see the operating instructions)
❙ 3) Ø 38 and Ø 70 mm, keyway in accordance with DIN 6885/3 P9
❙ Dimensions in mm
ind.
Anz./
quan.
97.6
xxxxxx
Änder-Nr./
revision no.
9
20
400
02.11.2012 STR
Datum/
Name/
date
400
0.2
CAD
72
3xM5
18
Datum/date
02.11.2012
Bea/drn
Gepr/chkd
10
11/12/14/15/20
0,5
Norm/appr
06
3
600
h15
Ind./
1
SLN  Gr.
25°
Benennung/name of draw
Ma
Dop
Zeichnungsnummer/draw
M
i
Datei/file
Ersatz fuer/back-up for
M14.0270_BFK458-06...25_Doppelbremse.iam
name
0.2 10
25°
400
0.2
25°
400
0.3
25°
11
5
6
7
8
9





β
β





Technical
data
β
β
Basic module
N + tacho flange
5
4
6
10
11











7
8
9
10




d10 d11 d12
d13
d14
d15
31
8
13
9,6
4xM4
37,7
41
8
13
9,6
4xM5
49
13
12
4xM5
Gr. d J7 vorg.
13
12
4xM5
45
10
52
10
55
12
70
12
77
14
90
120
06
24
08
24
14 10 4xM6
14 10 4xM6
15 10 4xM8
d16
d17 d18
3x4,4
di




da
h
h2
h3
h4

h5 standard h5 max
h6
h7
h8
h9
h11
40
60
36,3
1
6
15,8
107
-
54
23
32,8
56
1,5
18
400 0,2
25° 1 0
76,5
42,8
1
7
16,3
116
-
63
23
41,3
65
1,5
20
400 0,2
25° 10°
54
3x6,6 132
d H7 Standard
64
3x6,6 153
52
d1
68
66,1
95
48,4
d2 d3 H7 d6 j7 d14
70,1
115
54,9
-
73,3
da
85
42,4
77,8
1,5
h12
h13
l
47,4
88
1,5
20
l1
25
400 0,2 25° 10°
SLN  Gr.
400 0,3 25° 10°
10/11/12/14/15
72
75
3x9 169 3xM4
78
80,1
2
9
27,4
132
d15 d19 H7 d20 h7 d21
2
9
29,4
161
25124 87 66,3
4xM4 237,7 11 4033,8 95
di
98
195
-
40-
h
23
h2
23
60
97,9 36,332
1 5042,3 1014
217 3x5,5
4xM8 50 95 115 90116 233
237 42,8
129,4
49
56,1 76,5
1
174
49,8
4 83,120
254 4xM10
206
97,6
12
14
10
14
30
14
196 4xM5
75
90 4xM8
32
105
35/40/45/50
4xM10 230
85
11/12/14/15/20
112
42
130
4xM5
54
3x6,6 60
20/25
132
50
150
4xM5
64
3x6,6 60
20/25/30
145
60
165
4xM6
75
3x9
40/45/50/55/60/65/70 6xM10 278
115
302 4xM10
110
140
80
140
162
177
90
271
274
141 66,1 95
48,4
2
57,4
4
165 70,1 115
54,9
2
63,9
4
181 80,1 124
66,3
2
77,3
4
120
322
324
199,1
15
25/30/35/383)
170
68
190
4xM6
85
3x9
85
204
206 104,1 149
18
20
30/35/40/45
196
75
217
4xM8
95
4x9 4) 90
233
237 129,4 Ind./
174 Anz./83,1Änder-Nr./
3
20
5
25
35/40/45/506
230
85
2547 4xM10 110
4x114) 90
8 271
274 148,1 206
25
30
40/45/50/55/60/65/703)
278
115
302
6x11
322
324 199,1 254
4xM10 140
120
76,5
111 42,832
95
125 48,432
h115
l
54,932
12
146 h13
148,1
16
72,5
254
2,25 83,5
xxxxxx
5
-
ind.
quan.
3
94,1
400
0,2
3,5
20
4
0,2
4,5
25
119,2
Bea/drn
30
Gepr/chkd
01.11.2012
18
1,5
20
1,5
-20
-25
-30
30
600
0,3
25° 16
35
600
0,4
25° 18
4
40
600
0,4
25° 20
25°
4
50
600
CAD
25°
date
M14.0271
Datei/file
Ersatz fuer/back-up for
name M14.0271_BFK458-06...25N_Standard.iam
40
600
10
0,4
25°
106,7 4,5
119,2 4
50
600
0,5
25°
❙ 1) Pilot bored without keyway
❙ 2) Standard keyway in accordance with DIN 6885/1 P9, selection of the shaft diameter
11
5
-
Ind./
Anz./
quan.
ind.
6
Norm/appr
manual release lever
❙ 3) Ø 38 and Ø 70 mm, keyway in accordance with DIN 6885/3 P9
5
Gepr/chkd
❙ 4) The thread in the mounting surface is offset by 30° in relation to the centre axis of the
❙ Dimensions in mm
dependent upon type of load (see the operating instructions)
7
8
xxxxxx
Änder-Nr./
revision no.
9
25° 25
Zeichnungsnummer/drawing no.
600
0,4 25°
i
108,6 4
10°
Standardausführung - Baugröße
94,1
4Name/ 35
Datum/
3,5
10°
Maßblatt BFK458-N
Strate
0,3
0,5
10°
10°
Benennung/name of drawing
400
0,3 Dittrich
25°
01.11.2012
600
400
0,2 25°
30 400
0,3 06
25° 10
400
0,2 25°
30 600
0,3 08
25°
400
0,2 25°
35 600
0,4 10
25°
400
0,3 25°
40 600
0,4 12
25°
400
0,3 25°
50 600
0,5 14
25°
4
25°
400
0,3Name/name
25°
Datum/date
Norm/appr
30
108,6
400
106,7
01.11.2012 STR
revision no.
97,6
9
1 53,5
49,8 1144
2 59,1
57,4 1284
l21 68,6
SLN148,5
a 4
63,9
Bea/drn
4
β
+5
56,1
30/35/40/45
10 20 11/12/14/15/20
25
a
36
0818
10
SLN
45
0616
25
l1
86
124
77,3 1754
170 66,332 2 88,7
42,3
400 83,5
0,2 25°
149 4 72,518 2,25
4
20
l
3x5,5 106
11/12/14/15/20
90
32149105 72,5
4xM5 2,2549 11 50 37 115 240
116
56,185
3x9 194 3xM5
90 104,1
11/12/14/15/20
112 42174130 83,1
4xM5 3 54 11 6041,6140 279
141
66,1
95
4x9
- 3xM6
129,4
394
J7 1)
d17
dH7 2) 11020/25
d
d-3H7 148,1
d
d4xM5
d
di
da
h2
14 4xM10
132
50206d150
64 d11
165 h 70,1
6j7 d14
15 97,6
16
19h7
20h760d48,1
21 162
4x11
- 2 3xM6
3,5
319
416
spec. standard
20/25/30
145 60254165106,7
4xM6 4,575 12,58057,7177 445
181
80,1
18,414 4xM10 140
6x11
- 3xM8
199,1
501
10 15 10/11/12/14/15
25
87
40
60206 36,3
1
25/30/35/38 72 3xM8
170 4xM4
68 37,7
190 3x4,4
4xM6 40 85 95 8598 204
104,1
10
24
12
14 Size
24
14
16 24
































02.11.2012 STR
Datum/
date
Name/
Zeichnung gleicher Nr. vo
Datum/date
Name/name
02.11.2012
02.11.2012
Strate
Dittrich
CAD
Bene
Zeich
i
Datei/file
Ersa
name
M14.0269_BFK458-06...25_Tachoflansc
10
16I17
INTORQ I BFK458 spring-applied brake
Technical data
Rated data
Size
PN [W]
SLNmax
SLmax
min.2)
max.
Jalurotor
[at 20°C] 1)
Operating brake [mm]
Holding brake [mm]
Adjustment [mm]
Rotor thickness [mm]
[kgcm2]
Mass stator
compl. [kg]
06
20
0.5
0.3
1.5
4.5
0.15
0.75
08
25
0.5
0.3
1.5
5.5
0.61
1.2
10
30
0.5
0.3
1.5
7.5
2.0
2.1
12
40
0.75
0.45
2.0
8.0
4.5
3.5
14
50
0.75
0.45
2.5
7.5
6.3
5.2
16
55
0.75
0.45
3.5
8.0
15
7.9
18
85
1.0
0.6
3.0
10.0
29
12
20
100
1.0
0.6
4.0
12.0
73
19.3
25
110
1.25
0.75
4.5
15.5
200
29.1
❙ 1) Coil power at 20˚C in watts, deviation of up to ±10% possible dependent on
❙ 2) The friction lining is dimensioned so that the brake can be readjusted at least
the selected coil voltage.
five times
Rated torques
Size
Rated torque MK [Nm]
Reduction of rated torque at specified speed to x%
1500 r/min
3000 r/min
nmax [r/min]
Maximum speed
max.
06
4
87%
80%
74%
6000
08
8
85%
78%
73%
5000
10
16
83%
76%
73%
4000
12
32
81%
74%
73%
3600
14
60
80%
73%
72%
3600
16
80
79%
72%
70%
3600
18
150
77%
70%
68%
3600
20
260
75%
68%
66%
3600
25
400
73%
66%
66%
3000
❙ As speed increases, so does wear
❙ Maximum permissible rotational speed referred on standard friction lining
Operating times
The listed operating times are guide values which
apply to DC switching with rated air gap sLr,
warm coil and standard rated torque. The times
Rated torque
Torque time rated dependent on
excitation voltage
specified are mean values. The engagement time
t1 is approximately 8 to 10 times longer for AC
switching.
t11 = Delay time when connecting
t12 = Rise time of braking torque
t1 = Engagement time
t2 = Disengagement time
t3 = Slipping time
AC switching
Time
Excitation
DC switching
Time
Technical data
Operating times
Size
Rated torque
QE [J]
Shue [1/h]
MK [Nm]
Operating times1) [ms]
t11
t12
t1
t2
06
4
3000
79
15
13
28
45
08
8
7500
50
15
16
31
57
10
16
12,000
40
28
19
47
76
12
32
24,000
30
28
25
53
115
14
60
30,000
28
17
25
42
210
16
80
36,000
27
27
30
57
220
18
150
60,000
20
33
45
78
270
20
260
80,000
19
65
100
165
340
25
400
120,000
15
110
120
230
390
❙ 1) The operating times specified relate to the use
❙ The maximum permissible friction work per switching cycle QE relates to the standard
of INTORQ rectifiers and coils with a supply voltage
of 205 V DC
friction lining
Aluminium rotor design with low rate of wear
The wear values in the table apply to the friction lining with
low rate of wear and to the standard rated torque. The
friction energies specified up to the point of maintenance
Size
are rough guide values that are subject to a high degree of
variation depending on various influencing factors.
06
08
10
12
14
16
18
20
25
QE Maximum permissible
friction work per
switching cycle [J]
100 r/min
3000
7500
12000
24,000
30,000
36,000
60,000
80,000
120,000
1000 r/min
3000
7500
12,000
24,000
30,000
36,000
60,000
80,000
120,000
1200 r/min
3000
7500
12,000
24,000
30,000
36,000
60,000
80,000
120,000
1500 r/min
3000
7500
12,000
24,000
30,000
36,000
60,000
24,000
36,000
1800 r/min
3000
7500
12,000
24,000
30,000
36,000
36,000
3000 r/min
3000
7500
12,000
24,000
18,000
11,000
on request
on request
3600 r/min
3000
7500
12,000
7000
QBW
[106 J]
85
158
264
530
571
966
1542
2322
3522
Shue
[h-1]
79
50
40
30
28
27
20
19
15
QBW = Friction energy of brake until maintenance
Shue = Transitional operating frequency
on request
In the region of the load limit (operation > 50 % QE) the value for QBW
can drop as low as 40%
18I19
INTORQ I BFK458 spring-applied brake
Technical data
Service life and wear
1.000.000
Friction energy and operating frequency
25
100.000
105
20
10
10.000
104
18
12
Sizes
08
Braking energy QR [J]
Schaltarbeit Q [J]
16 14
06
1.000
103
100
102
10
10
1
1
10
10
2
Operating frequency S h
10
100
[h-1]
3
10
1.000
SchalthŠufigkeit Sh [h-1]
Shmax =
- Shue
In 1 - QR
QE
(
)
Qsmax = QE
The brake has to be adjusted when sLmax is
reached. The friction energy to be withstood
up to this point is dependent on a number of
factors: in particular, the inertias to be braked,
the braking speed, the operating frequency and
the resulting temperature on the friction surfaces.
For this reason, no universal value for all operating
conditions can be given in respect of the amount
of friction energy that can be handled before
adjustment is required. In addition, increased wear
should be expected with a vertical brake shaft.
The BFK458 can be adjusted when the maximum
permissible working air gap is reached (sLmax). The
dimensioning of the friction lining allows it to be
104
readjusted at least 5 times .
10.000
( )
S
- hue
S
1- e h
The maximum permissible operating frequency
Shmax depends on the braking energy QR. The
operating frequency Sh results in the maximum
permissible friction work during cyclic switching
Qsmax. Higher speed and switching energy values
increase wear, because the friction surfaces are
briefly subjected to very high temperatures.
Maintenance
Brakes are components which are subject to a
great deal of wear. When installing the brake, it
must be ensured that it can be easily accessed for
inspection and maintenance purposes. Intervals
between inspections should be set in accordance
with the expected service life and load. For more
information, please see the operating instructions.
Where the amount of friction energy per switching
operation is low, the brake's mechanical
components can impose limitations in terms
of service life. In particular, the rotor/hub
connection, springs, armature plate and sleeves
are subject to operational wear. The expected
service life of the standard design is around
1 million load alternations. Solutions that are
optimised in terms of service life are available
in cases where a longer service life is required
(consult the manufacturer).
BFK458-L
Guaranteed performance data for the LongLife
design
❙ Guaranteed service life of brake mechanism:
10x106 repetitive cycles of operation
15x106 reversing cycles of operation
❙ The brake warranty covers either a period of two
years or the guaranteed number of cycles
– whichever is reached first.
❙ The scope of the warranty in the event of
premature failure covers replacement of the
brake, including a flat-rate replacement fee
Accessories
Hand release
The hand release is used to release the brake by
hand and can be retrofitted. The hand release
springs back to its base position automatically
after operation (1). The hand release requires an
additional air gap SHL in order to function; this is
factory-set prior to delivery. Dimension SHL (see
the mounting instructions) must be checked once
the equipment has been mounted.
sLN +0.1
sHL +0.1
[mm]
[mm]
06
08
10
0.2
1
12
14
16
0.3
1.5
18
20
0.4
2
25
0.5
2.5
Size
-0.05
Flange
A flange can be used if no suitable counter friction
face is available. The flange can also be fitted with
a cover ring.
Friction plate
A friction plate is available for sizes 06 up to and
including 16. This should be used if the counter
face is smooth and machined, but is not suitable as
a friction surface. The plate can be combined with
a cover ring.
Flange
Friction plate
(sizes 06 – 16)
20I21
INTORQ I BFK458 spring-applied brake
Accessories
Seal
To a large extent, the cover ring prevents the exit
or ingress of dust, humidity, dirt, etc., out of or
into the braking area. The seal is inserted into
the groove on the stator. If no suitable groove
is available on the counter friction face, we
recommend the use of a flange or a friction plate.
Seal
Connection flange (double brake)
The connection flange can be used to adapt a
second basic module to basic module N; the
resulting double brake is suitable for use in stage
machinery or other applications with increased
safety requirements.
Connection flange
Centring flange (tacho brake)
Basic module N combined with a centring flange is
suitable for mounting a tacho generator.
Centring flange
Accessories
Brake cover
A brake cover can be mounted onto basic module
E and basic module N as an option, to protect the
brake from water and dust (degree of protection
acc. to IP65). This design is not available in
conjunction with a hand release and a flange.
Size
d1
d2
d3H8
d4
d5
h
h1
h2
h31)
06
135
120
98
4x4.5
M16x1.5
55
28
16.5
3
08
155
142
118
4x5.5
M20x1.5
61
34
20
3
10
185
166
143
4x5.5
M20x1.5
72
39
21
3
12
205
192
163
4x6.6
M20x1.5
82
42
23
3
14
225
212
183
4x6.6
M20x1.5
92
51
24
3
16
250
236
208
4x6.6
M20x1.5
98
52
25
3
18
285
268
238
4x6.6
M20x1.5
115
60
29
3
20
330
314
283
4x9
M20x1.5
131
69
35
3
25
390
368
328
4x9
M20x1.5
142
78
40
3
❙ 1) Recommended recess length on motor end shield
INTORQ I BFK458 spring-applied brake
1
3
2
5
4
6
7
8
A
20
30
40 mm 50
22I23
0
10
Accessories
B
Microswitch
Mounting the microswitch onto basic module E
The brake can be fitted with a microswitch for the
purpose of monitoring the release or wear. The
microswitch can be built into the circuit as an NC
contact or an NO contact.
C
A
2
3
5
4
6
7
8
As of June 2012, a new small microswitch (with UL
acceptance) is in use, which is perfectly adapted
to the contour of the brake. The old switch design
can be converted by connecting an adapter to the
same threaded holes.
9
10
11
D
0
10
20
30
40 mm 50
1
B
E


C
F
Schutzvermerk ISO 16016 beachten. Copyright reserved.
D
E
Schutzvermerk ISO 16016 beachten. Copyright reserved.
F
G
H
G
H


Microswitch for hand release monitoring in
combination with basic module N
1
Gate drives, for instance, are provided with brakes
with hand release, and a microswitch for
monitoring the hand release. In this case, the
hand release must make it possible to move
the gate to the desired position in manual
operation, e.g. using a crank. This manual
operation has to be detected via a microswitch,
whose switching signal must be combined with the
motor control so that the motor can be prevented
from starting (thus also preventing any possible
injury to the operator). The microswitch for hand
release monitoring is a built-on option.
1
2
3
4
3
2
5
The fixing bracket is screwed onto the stator via the
threaded holes on the rear face. The fixing bracket
enables a microswitch to be fastened to it. The two
directions of release, towards and away from the
motor, can be implemented by using different fixing
brackets and microswitch settings.
5
4
6
7
Allgemeintoleranzen/
general tolerance
Oberflächen/
surface
DIN ISO 1302
Tol.Maß/
Abmaß/
Tol.Maß/
Abmaß/
tol. size
deviation
tol. size
deviation
Datum/date
8
X
Rz25
Y
Rz6,3
Z
Rz1
Name/name
Maßstab/scale
Werkstoff/material
Benennung/name of drawing
Bea/drn
Gepr/chkd
Norm/appr
CAD
Ind./
6
7
8
ind.
Anz./
quan.
Änder-Nr./
revision no.
9
Datum/
date
Name/
Zeichnungsnummer/drawing no.
i
name Datei/file
BMK45816-001E_MS.iam Ersatz fuer/back-up for
10
11
Gewicht/wei
Accessories
Terminal box in combination with basic module N
The connecting cables can easily be integrated
into higher-level controls via the terminal box
(brake sizes 12-25) in order to support different
wiring options (total of 3 inputs/outputs). 2/4pole terminal strips, 4-pole half-wave and bridge
rectifiers and a microswitch connection can be
integrated into the terminal box at the customer's
request.
The terminal box is mounted on the spring-applied
brake using a fixing bracket and screws, as shown
in the illustration. You can select the mounting
angle according to your requirements by using the
assembly kit.
The terminal box is shown
offset by 30°
Size
12
14
16
18
20
25
b
-5
5.5
12.5
23
37.5
45.5
h
122
130
142
155
174
198
r
126
134
146
158.5
177
201
❙ Dimensions in mm
24I25
INTORQ I BFK458 spring-applied brake
Accessories
Bridge rectifiers and half-wave rectifiers
Type code
B
E
G
–
5
6
1
–
440
Brake
Electronics
Rectifier
1-Bridge rectifier
2-Half-wave rectifier
5-Bridge/half-wave rectifier
4-pole
6-pole
1-Mounting position horizontal
2-Mounting position vertical
3-Mounting position horizontal with snap-in stud
440 Voltage 440 V AC
INTORQ 14.198.00 universal spark suppressor
The universal spark suppressor limits the induced voltage
arising when inductive direct current consumers are
switched off on the DC side. These induced voltages can
damage coils and switches. VDE 0580 therefore requires
INTORQ
Coil voltage
[V DC]
Max. connection
voltage
14.198.00.01
24 – 50
60 V~

14.198.00.02
50 – 120
250 V~
14.198.00.03
120 – 200
400 V~

14.198.00.04
200 – 250
555 V~
Max. coil
power [W]
that, in order to avoid impermissibly high switch-off
voltages and overvoltages, suitable protective measures
must be provided by the user. The universal spark
suppressor is available in 4 versions for the following
voltage ranges:
Capacitorb
voltage
b1
d
approx.
e
h
l
approx.
l1
m
approx. [g]
110 250 V~

110 630 V
 ~
7
11
0.7
20
17
26.5
16
7
15
19
0.7
22.5
25
31.5
12
22
110
8.5
15
0.7
20
19
26.5
16
17
8.5
15
0.7
20
19
26.5
16
10
110
1000 V
~
1000 V
~

Dimensions
Wiring example
Parallel to contact
Spark suppressor
14.198.00.XX

Parallel to coil



Accessories
Bridge rectifiers and half-wave rectifiers, 4-pole
Dimensions
Only for 143-270 or 243-555
BEG-142/143-270
BEG-242/243-555
INTORQ
BEG-142/143-270
BEG
Bridge rectifiers, 4-pole
BEG-142-270 vertical mounting position
BEG-143-270 horizontal mounting position with
snap-in stud
Half-wave rectifiers, 4-pole
BEG-242-555 vertical mounting position
BEG-243-555 horizontal mounting position with
snap-in stud
Application area
Current supply for spring-applied brakes from AC
mains (normal excitation)
Example: 205 V DC coil on 230 V AC mains
Application area
Current supply for spring-applied brakes from AC
mains (normal excitation)
Example: 180 V DC coil on 400 V AC mains
Technical data
Max. supply voltage
270 V~
Max. DC current at 60°C
1.0 A
Max. ambient temperature
-25°C to +80°C
For the selection of associated coil voltages,
please refer to the table
Technical data
Max. supply voltage
555 V~
Max. DC current at 60°C
1.0 A
Max. ambient temperature
-25°C to +80°C
For the selection of associated coil voltages,
please refer to the table
The rectifiers are protected against overvoltage by
input and output varistors.
The rectifiers are protected against overvoltage by
input and output varistors.
Ug =
U~ 230 V~
=
= 205 V DC
1.11 1.11
Ug =
U~ 400 V~
=
= 180 V DC
2.22 2.22
26I27
INTORQ I BFK458 spring-applied brake
Accessories
Bridge rectifiers, 6-pole
Dimensions
BEG-162-270
BEG-161-270
INTORQ
INTORQ
BEG-161-270
BEG-161-270
BEG
BEG-162-270
BEG-162-270 BEG
Bridge rectifiers, 6-pole
BEG-162-270 vertical mounting position
BEG-161-270 horizontal mounting position
Application area
Current supply for spring-applied brakes from AC
mains (normal excitation)
Example: 205 V DC coil on 230 V AC mains
Technical data
Max. supply voltage
270 V~
Max. DC current at 60°C
0.75 A
Max. ambient temperature
-25°C to +80°C
The rectifiers are protected against overvoltage by
input and output varistors.
BEG-162-270/161-270/
262-460/261-460 rectifiers also contain the
required spark suppressor.
For the selection of associated coil voltages,
please refer to the table
Ug =
U~ 230 V~
=
= 205 V DC
1.11 1.11
Accessories
Half-wave rectifiers, 6-pole
Dimensions
BEG-262-460
BEG-262-555
BEG-261-460
BEG-261-555
INTORQ
BEG-262-460
BEG-262-460
BEG
Half-wave rectifiers, 6-pole
BEG-262-460 vertical mounting position
BEG-261-460 horizontal mounting position
BEG-262-555 vertical mounting position
BEG-261-555 horizontal mounting position
Application area
Current supply for spring-applied brakes from AC
mains (normal excitation)
Example: 180 V DC coil on 400 V AC mains
Ug =
U~ 400 V~
=
= 180 V DC
2.22 2.22
INTORQ
BEG-261-460
BEG
Technical data
Max. supply voltage
Max. DC current at 60°C
Max. ambient temperature
BEG-261-460
460 V~/555 V~
0.75 A
-25°C to +80°C
The rectifiers are protected against overvoltage
by input and output varistors. BEG-162-270/161270/262-460/261-460 rectifiers also contain the
required spark suppressor.
For the selection of associated coil voltages,
please refer to the table
28I29
INTORQ I BFK458 spring-applied brake
Accessories
Bridge/half-wave rectifier
Once a set overexcitation time has elapsed,
the bridge/half-wave rectifiers switch from
bridge rectification to half-wave rectification.
This makes it possible to improve switching
performance or reduce power in accordance with
coil dimensioning.
Rectifier type
Supply voltage
Overexcitation
Coil voltage
Size
Coil voltage
[V DC]
[V AC]
Holding current reduction
[V DC]
BEG-561-255-030
Size
06 to 14
230
103
06 to 25
205
BEG-561-255-130
16 to 25
BEG-561-440-030-1
–
400
180
06 to 25
The information in this table is valid for the BFK458 with standard rated torque and for
designs without pole shim (assignment for other brakes on request)
Dimensions
Connection diagrams
AC switching
INTORQ
DC switching
BEG
Mains
Technical data
Rectifier type
Output voltage with bridge rectification
0.9xU1
Output voltage with half-wave rectification
0.45xU1
Ambient temperature (storage/operation) [°C]
-25 to +70
Type
Rated
[V~]
max
[V~]
Bridge
[A]
Half-wave
[A]
BEG-561-255-030
160
230
255
3.0
1.5
BEG-561-255-130
BEG-561-440-030-1
400
440
Mains
Max. current lmax.
230
Coil
Coil
In the case of switching on the DC side (fast
engagement), switching must also occur on the
supply side. Otherwise, overexcitation will not
occur on restarting.
Input voltage U1
(40 Hz to 60 Hz)
min
[V~]
Bridge
1.5
0.75
Overexcitation time to (±20%)
at U 1 min
[s]
at U 1 Rated
[s]
at U 1 max
[s]
0.430
0.300
0.270
1.870
1.300
1.170
0.500
0.300
0.270
4-polig
BEG-14x
BEG-24x
U1 V1 W1
W2 U2 V2
UN
Accessories
Connection diagrams
Elektrische Installation
6.2
6-polig
BEG-16x
BEG-26x
Abb. 21
BK 1
UV
Einweggleichrichter
Uv
BEG-2xx: UN [VDC]=0.45 • --------- [VAC]
3
UV
L1 L2 L3
L1 L2 L3
Elektrische Installation
4-polig
4-pole
BEG-14x
BEG-24x
6.3
U1 V1 W1
W2 U2 V2
4-pole
4-polig
BEG-14x
BEG-24x
Gleichstromseitiges Schalten am Motor - schnelles Verknüpfen
UU1V V1 W1
W2 U2 V2
6-pole
6-polig
BEG-16x
BEG-26x
UN
L1 L2 L3
2
BK 1
6-pole
6-polig
BEG-16x
BEG-26x
UN
BN
4 BU
Abb. 22
Supply: Phase-Starpoint
Brückengleichrichter
Uv
BEG-1xx: UN [VDC]=0.9 • --------- [VAC]
3
BK 1
6-polig
BEG-16x
BEG-26x
U1 V1 W1
W2 U2 V2
Versorgung: Phase-Sternpunkt
4 BU
Versorgung: Phase-Sternpunkt
Brückengleichrichter
Uv
BEG-1xx: UN [VDC]=0.9 • --------- [VAC]
3
ACSchalten
switching
parallel
to the motor
– strong delayed engagement
Wechselstromseitiges
am Motor
- stark verzögertes
Verknüpfen
Abb. 21
BN
2
Versorgung: Phase-Phase
BN
2
4 BU
Supply: Phase-Phase
Brückengleichrichter1)
Einweggleichrichter
Einweggleichrichter
Uv
BEG-1xx:
UN- [VDC]=0.9
• UV [VAC]
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
BEG-2xx: UN [VDC]=0.45
• -------[VAC]
3 bei den meisten länderspezifischen hohen Netzspannungen
1)
BN
nicht sinnvoll
UN
BK 1
2
4 BU
UV
L1 L2 L3
Elektrische Installation
Abb. 23
Versorgung: Phase-Sternpunkt
Brückengleichrichter
Uv
BEG-1xx: UN [VDC]=0.9 • --------- [VAC]
4-polig | BA 14.0168 | 09/2015
INTORQ
BEG-14x
DC
switching
the
motor – fast engagement 3
Gleichstromseitiges
Schalten
am Motorparallel
- schnellesto
Verknüpfen
BEG-24x
6.3
U
U1V V1 W1
L3 V2
L1 W2
L2 U2
Abb. 22
L1 L2 L3
2
BK 1
BN
4 BU
6-pole
6-polig
U1 V1 W1
W2 U2 V2
BEG-16x
BEG-26x
Versorgung: Phase-Phase
Brückengleichrichter1)
Einweggleichrichter
BEG-1xx: UN [VDC]=0.9 • UV [VAC]
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
1)
UN
nicht sinnvoll bei den meisten länderspezifischen hohen Netzspannungen
BK 1
Abb. 23
Versorgung: Phase-Sternpunkt
Abb. 24
Supply: Phase-Starpoint
Brückengleichrichter
Uv
NTORQ | BA 14.0168 | 09/2015
BEG-1xx: UN [VDC]=0.9 • --------- [VAC]
3
UV
L1 L2 L3
U1 V1 W1
W2 U2 V2
43
3
UV
6-polig
BEG-16x
BEG-26x
UN
Einweggleichrichter
Uv
BEG-2xx: UN [VDC]=0.45 • --------- [VAC]
2
6-polig
6-pole
U1 V1 W1
W2 U2 V2
BN
4 BU
BEG-16x
BEG-26x
UN
BK 1
2
BN
4 BU
Versorgung: Phase-Phase
Supply:
Phase-Phase Einweggleichrichter
1)
Einweggleichrichter Brückengleichrichter
Uv
43
BEG-1xx:
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
N [VDC]=0.9 • UV [VAC]
BEG-2xx: UN [VDC]=0.45
• --------- U[VAC]
1)
nicht 3sinnvoll bei den meisten länderspezifischen hohen Netzspannungen
INTORQ | BA 14.0168 | 09/2015
6-polig
BEG-16x
BEG-26x
44
30I31
BEG-14x
BEG-24x
INTORQ I BFK458 spring-applied brake
6-polig
BEG-16x
BEG-26x
UN
Accessories
Connection diagrams
trische Installation
Abb. 25
4 BU
Einweggleichrichter
BEG-1xx: UN [VDC]=0.9 • UV [VAC]
AC switching by mains – delayed engagement
Wechselstromseitiges Schalten am Netz - verzögertes Verknüpfen
UV
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
UV
N
L1 L2
Elektrische
Installation
4-polig
4-pole
BEG-14x
BEG-24x
4-polig
4-pole
BEG-14x
BEG-24x
Gleichstromseitiges Schalten am Netz - schnelles Verknüpfen
6.5
UV
6-polig
6-pole
BEG-16x
BEG-26x
UN
Abb. 25
BN
Versorgung: Phase-N
Brückengleichrichter
L1
2
BK 1
BN
2
BK 1
Versorgung: Phase-N
Supply: Phase-N
oder
UN
4 BU
Abb. 26
Versorgung:
Phase-Phase
Supply:
Phase-Phase
Brückengleichrichter
Einweggleichrichter
Brückengleichrichter1)
BEG-1xx: UN [VDC]=0.9 • UV [VAC]
BEG-2xx: UN [VDC]=0.45
• UUVN[VAC]
BEG-1xx:
[VDC]=0.9 • UV [VAC]
1)
6-polig
6-pole
BEG-16x
BEG-26x
L1 L2
L1 N
6-polig
BEG-16x
BK 1
BEG-26x
2
BN
4 BU
Einweggleichrichter
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
BN
UN
2
nicht sinnvoll bei den meisten länderspezifischen hohen Netzspannungen
BK 1
4 BU
UV
trische Installation
Abb. 27
L1 L2
Versorgung: Phase-Phase oder Phase-N über 6-poligen Gleichrichter
Brückengleichrichter1)
4-polig
BEG-16x:
UN [VDC]=0.9 • UV [VAC]
INTORQ
|
BA
14.0168
| 09/2015
BEG-14x
DC switching by mains – fast engagement
1)
Gleichstromseitiges Schalten am Netz - schnelles Verknüpfen
UV
oroder
Abb. 26
UV
6-polig
BEG-16x
BEG-26x
UN
or
oder
2
BK 1
BEG-16x
BEG-26x
4 BU
14.198.00.xx
Versorgung: Phase-Phase
BEG-1xx: UN [VDC]=0.9 • UV [VAC]
BEG-2xx: UN [VDC]=0.45 • UV [VAC]
U
N
nicht sinnvoll bei den meisten länderspezifischen hohen Netzspannungen
BK 1
Versorgung: Phase-Phase oder Phase-N über 6-poligen Gleichrichter
Supply: Phase-Phase or Phase-N by
Brückengleichrichter1)
6-pole rectifier
ORQ | BA BEG-16x:
14.0168 | U
09/2015
N [VDC]=0.9 • UV [VAC]
1)
BEG-14x
BEG-24x
BN
Einweggleichrichter
Abb. 27
L1 L2
L1 N
4-pole
4-polig
6-polig
6-pole
Brückengleichrichter1)
1)
45
bei den meisten länderspezifischen hohen Netzspannungen nur sinnvoll bei Versorgungen über L1 und N
BEG-24x
L1 L2
L1 N
Einweggleichrichter
BEG-26x: UN [VDC]=0.45 • UV [VAC]
2
BN
4 BU
Abb. 28
UN
BK 1
2
BN
4 BU
Versorgung:
Phase-Phase
oder Phase-N über
Gleichrichter
Supply:
Phase-Phase
or 4-poligen
Phase-N
by
Einweggleichrichter Brückengleichrichter1)
4-pole rectifier
45
BEG-26x: UN [VDC]=0.45
• UV U
[VAC]
BEG-14x:
N [VDC]=0.9 • UV [VAC]
Einweggleichrichter
BEG-24x: UN [VDC]=0.45 • UV [VAC]
bei den meisten länderspezifischen hohen Netzspannungen nur sinnvoll Funkenlöschglied:
bei Versorgungen über L1 und N
14.198.00.xx (einmal benötigt, Position wahlweise)
1)
UV
oder
L1 L2
L1 N
bei den meisten länderspezifischen hohen Netzspannungen nur sinnvoll bei Versorgungen über L1 und N
INTORQ | BA 14.0168 | 09/2015
4-polig
BEG-14x
BEG-24x
14.198.00.xx
46
Accessories
Supply voltage selection table for bridge rectifiers and half-wave rectifiers
Rectifier type and rated coil voltage for mains voltage
AC
Rectifier
voltage
V AC
Rectifier type
Spark suppressor
4-pole
1 A at 60°C
Rectifier type
6-pole
0.75 A at 60°C
Rated coil
voltage ± 10%
V DC
42 V
Half-wave
BEG-243/242-555
14.198.00.01
BEG-262/261-460
20 V
48 V
Bridge
Half-wave
BEG-142/143-270
BEG-243/242-555
14.198.00.01
14.198.00.01
BEG-162/161-270
BEG-262/261-460
42 V
20 V
110 V
Bridge
BEG-142/143-270
14.198.00.02
BEG-162/161-270
103 V
220 V
Bridge
Half-wave
BEG-142/143-270
BEG-243/242-555
14.198.00.04
14.198.00.02
BEG-162/161-270
BEG-262/261-460
205 V
103 V
230 V
Bridge
Half-wave
BEG-142/143-270
BEG-243/242-555
14.198.00.04
14.198.00.02
BEG-162/161-270
BEG-262/261-460
205 V
103 V
240 V
Bridge
Half-wave
BEG-142/143-270
BEG-243/242-555
14.198.00.04
14.198.00.02
BEG-162/161-270
BEG-262/261-460
215 V
103 V
255 V
Bridge
BEG-142/143-270
14.198.00.04
BEG-162/161-270
225 V
277 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
127 V
290 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
127 V
380 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
180 V
400 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
180 V
415 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
180 V
420 V
Half-wave
BEG-243/242-555
14.198.00.03
BEG-262/261-460
180 V
440 V
Half-wave
BEG-243/242-555
14.198.00.04
BEG-262/261-460
205 V
460 V
Half-wave
BEG-243/242-555
14.198.00.04
BEG-262/261-460
205 V
480 V
Half-wave
BEG-243/242-555
14.198.00.04
BEG-262/261-555
215 V
500 V
Half-wave
BEG-243/242-555
14.198.00.04
BEG-262/261-555
225 V
555 V
Half-wave
BEG-243/242-555
14.198.00.04
BEG-262/261-555
250 V
❙ * Spark suppressor without capacitor. For optimum spark suppression, we recommend the use
of spark suppressor 14.198.00.04
❙ Max. rated coil voltage: 250 V
Standard rated voltages: 24, 96, 103, 170, 180, 190, 205 V
32I33
INTORQ I BFK458 spring-applied brake
Dimensioning
Basics
A brake is dimensioned essentially on the basis of the
required braking torque Merf.
The inertias to be braked (moments of inertia), the relative
speeds, the braking times and the operating frequencies
also have to be considered in the calculations. Marginal
conditions, such as ambient temperature, air humidity,
dust and mounting position should be known. In the
event of extreme/critical operating conditions, please
consult the manufacturer. The brake is dimensioned in
accordance with VDI guideline 2241.
Friction surfaces must always be kept free of oil
and grease.
For explanations of the terms used in the calculation,
please refer to the list of abbreviations on page 5.
Safety factor
To ensure the necessary transmission security even
under extreme operating conditions, braking torque need
to include the safety factor K, the value of which should
be set dependent upon the operating conditions.
K82
Load types
The following load types are primarily encountered in
practice:
Merf =
JL · ∆n0
(
9.55 · t3 –
t12
2
JL · ∆n0
)
( )
t12
9.55 · t3 –
2
Merf =
JL · ∆n0
( 9.55 · (t – t )±M )· K ( MK
2
L
12
3
+ ML = To be used with driving load torque
(e.g. when lowering a load)
– ML = For braking operation
Estimating the required braking torque and/or
size
If only the drive power to be transmitted is known, the
required torque or braking torque can be determined as
follows:
P
Merf = 9550 ∆n · K ( MK
0
Thermal load
If high operating frequencies and friction energy/
switching cycle are to be expected, we recommend
recalculating the thermal data for the brake. The friction
energy per switching cycle is calculated as follows:
Q=
JL · ∆n02
182.5
·
MK
MK ±ML
– ML = To be used when lowering the load, for example
+ ML = For braking operation
Merf = Ma · K ( MK
Ma =
Merf = (Ma ±ML ) · K ( MK
·K
Dynamic and static load
Most applications belong to this category, as in most cases
there is not only a static torque but also a dynamic load.
The permissible friction energy per switching cycle
at a given operating frequency can be taken from the
diagrams on page 14. If the friction energy per switching
cycle is known, the permissible operating frequency can
be taken from the diagrams mentioned above.
Dimensioning
Example calculation
Thermal recalculation
The following technical data is known:
P = 3 kW
∆n0 = 1450 rpm
JL = 0.13 kgm2 total
t3 = 2 s
ML = 15 Nm
Sh = 100 switching operations/h
Q=
Q=
Estimating the required braking torque and/or size
MK
JL · ∆n0 2
·
182.5
MK ±ML
0.13 · 14502
60
·
182.5
(60 -15) = 1997 J
Calculated switching energy Q = 1997 J/switching cycle.
The diagram on page 18 shows a max. permissible
friction work of 7,326 J for size 14 at Sh = 100 h-1.
Q = 1997 J < QSmax = 7326 J
The brake is correctly dimensioned.
Merf = 9550
P
·K
∆n0
Merf = 9550
3
· 2 = 40 Nm
1450
Assume BFK458-14
Example order
Brake type BFK458-14E or design N (with or without
torque adjustment ring) is required, with additional hand
release and seal ring.
Determining the required braking torque
JL · ∆n0
t12
9.55 · t12
2
(
Merf =
( )
)
+ ML · K
t12 = 0.025 s (see page 14)
Merf =
(
0.13 ·1450
0.025
9.55 · 2–
2
(
)
)
+15 · 2 = 50 Nm
Therefore, BFK458-14 is chosen.
MK = 60 Nm > Merf = 50 Nm
Supply voltage 205 V =, shaft diameter 25 mm.
BFK458-14E, 205 V =, d = 25 mm
34I35
INTORQ I BFK458 spring-applied brake
Product overview
BFK458 spring-applied brake
INTORQ BFK458-òòò
Size
ò
Design
ò E (with torque adjustment ring)
ò N (without torque adjustment ring)
Voltage
ò 24 V
ò 170 V
Braking torque
1.5 – 600 Nm (see torque graduations)
06
ò 08
ò 96 V
ò 10
ò 12
ò 103 V
ò 14
ò 180 V
ò 16
ò 190 V
ò 18
ò 20
ò 205 V
Cable length
ò Standard from 100 mm – 1000 mm in 100 mm steps,
from 1000 mm – 3000 mm in 250 mm steps
Hand release
Armature plate
Microswitch
Terminal box
Temperature resistance -40˚C
ò Mounted
ò As mounting kit
ò Standard
ò Hard chrome-plated (size 06 and above)
ò With pole shim/brass film
ò Mounted (size 12 and above)
ò With hard chrome-plated friction surfaces (armature plate and flange are essential)
ò With temperature-resistant fixing screws
ò Noise-reduced
Rotor with low rate of wear
ò Aluminium
ò Noise-reduced
Fixing
screw set
Terminal box
Counter friction face
Sealing
(O-ring design)
ò Switching function monitoring (size 12 and above)
ò Wear monitoring (size 12 and above)
ò Hand release monitoring, direction of release away from motor (sizes 06-25)
ò Hand release monitoring, direction of release towards motor (sizes 06-10)
Rotor
ò Aluminium
Hub
ò Noise-reduced
(rotor with sleeve)
(rotor with sleeve)
For bore diameter, see Dimensions
ò For mounting onto the flange
ò For mounting onto the motor/friction plate
ò For flange with through hole (up to and including size 16)
ò For connection flange/double brake
ò As mounting kit
ò Friction plate (up to and including size 16)
ò Flange
ò Flange hard chrome-plated
ò Seal
ò Cap
ò Tacho flange
ò Connecting flange double brake
ò Shaft sealing ring (shaft diameter on request)
ò Brake cover
Electrical accessories
Bridge rectifier
Half-wave rectifier
Spark suppressor
ò 4-pole without snap-in stud
ò 6-pole vertical, integrated spark suppressor
ò 4-pole with snap-in stud
ò 6-pole horizontal, integrated spark suppressor
ò 4-pole without snap-in stud
ò 6-pole vertical, integrated spark suppressor
ò 4-pole with snap-in stud
ò 6-pole horizontal, integrated spark suppressor
ò Yes
ò 25
Setting standards in the market, worldwide
We are available to our customers at all times and in
all locations. Major customers and projects are
supported directly by our Key Account Sales Team
at our HQ in Aerzen (Germany) or by our locations
in Shanghai (China), Atlanta (USA) and Pune (India).
Please send service requests directly to your local
sales partner or to our HQ in Aerzen, Germany:
E-mail service@intorq.de
Tel:
+49 5154 70534-444
Fax: +49 5154 70534-200
In addition to this, we work with a global network of
local trading partners and cooperate with Lenze's
global sales organisation.
You can find more information on our products, as well
as catalogues and operating instructions available
for download, on our website at www.intorq.de
INTORQ GmbH & Co. KG
Postfach 1103
D-31849 Aerzen, Germany
Wülmser Weg 5
D-31855 Aerzen, Germany
Tel:
+49 5154 70534-0
Fax: +49 5154 70534-200
E-mail info@intorq.de
INTORQ (Shanghai) CO., LTD
China
No. 600, Xin Yuan Nan Road,
Building No. 6 / Zone B
Nicheng town, Pudong
Shanghai, China 201306
Tel:
+86 21 20363-810
Fax: +86 21 20363-805
E-mail info@cn.intorq.com
INTORQ US INC.
USA
300 Lake Ridge Drive SE
Smyrna, GA 30082, USA
Tel:
+1 678 236-0555
Fax: +1 678 309-1157
E-mail info@us.intorq.com
33002356 Subject to technical alterations ❚ Printed in Germany 11.2015 en ❚ 2.0
INTORQ India Pvt. Ltd.
India
Plot No. E-7/3, Chakan
Industrial Area, Phase 3,
Nighoje, Taluka-Khed,
Pune, 410501 Maharashtra,
Tel:
+91 21 3562-5500
E-mail info@intorq.in
www.intorq.com