Couplings • Steel Hub Boring, Keyseating, Setscrews & Puller Bolt Holes
All Types
Figure 1
(Page 1 of 8)
Figure 5
Boring Instructions for Steel Hubs
Figure 2
Refer to the appropriate selection guide for coupling hub
minimum and maximum bores. IMPORTANT: Maximum bores
are LESS for INTERFERENCE FIT bored hubs with a setscrew
OVER the keyway. Refer to Engineering 427-105 for allowable
bores. Use the following procedure for reboring couplings with
STEEL hubs. To avoid damage to hub, use brass sheet between
chuck jaws and hub.
1. Chuck hub and indicate on face for runout (Fig. 1); refer
to hub types on Page 2. Do not exceed runout shown in
Table 1.
2. Indicate on diameter for runout (Fig. 2) as shown in
applicable drawing on Page 2. Do not exceed runout
shown in Table 1. Tighten jaws and recheck runout on
face and diameter.
3. Rexnord recommends the use of a spade drill for quick
stock removal from solid hubs. (Figure 3.)
4. For heavy cuts, use a large boring bar (Fig. 4). After
taking heavy cuts, recheck the runout on face and
diameter per Steps 1 and 2. Finish bore per Table 3 on
Page 2 and chamfer per Table 2 below.
5. Machine keyway to recommended size and tolerance
listed per Table 4 on Page 3.
TABLE 1 — Hub Setup Runout Tolerances — In
Bore Diameter
Over
To and Including
Runout
Tolerance
(TIR)
....
6.0000
12.0000
20.0000
30.0000
6.0000
12.0000
20.0000
30.0000
40.0000
.001
.002
.003
.004
.005
Figure 3
TABLE 2 — Bore Chamfers — Inches
Figure 4
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
Bore Diameter
Chamfer
+ .030
- .000
Up to 2.000
Over 2.000 - 3.000
Over 3.000 - 7.500
Over 7.500
.030 x 45°
.060 x 45°
.090 x 45°
.120 x 45°
427-108
August 2003
Supersedes 4-96
Steel Hub Boring, Keyseating, Setscrews, & Puller Bolt Holes • Couplings
(Page 2 of 8)
All Types
Steel Hubs
TABLE 3 — Recommended Bores for Steel Hubs — Inches
Shaft
Dia
+.0000
– .0005
.5000
.5625
.6250
.6875
.7500
.8125
.8750
.9375
1.0000
1.0625
1.1250
1.1875
1.2500
1.3125
1.3750
1.4375
1.5000
+.0000
– .0010
1.5625
1.6250
1.6875
1.7500
1.8125
1.8750
1.9375
2.0000
+.0000
– .0010
2.0625
2.1250
2.1875
Clearance Fit
Hub
Bore
+.0010
– .0000
.5000
.5625
.6250
.6875
.7500
.8125
.8750
.9375
1.0000
1.0625
1.1250
1.1875
1.2500
1.3125
1.3750
1.4375
1.5000
+.0010
– .0000
1.5625
1.6250
1.6875
1.7500
1.8125
1.8750
1.9375
2.0000
+.0015
– .0000
2.0625
2.1250
2.1875
Interference Fit
Shaft
Dia
Clear- Hub Interance Bore ference
.0000 +.0005 .0000
.0015 – .0000 .0010
.4990
.5615
.6240
.6865
.7490
.8115
.8740
.9365
.9990
1.0615
1.1240
1.1865
1.2490
1.3115
1.3740
1.4365
1.4990
.0000 +.0005 .0000
.0020 – .0000 .0015
1.5610
1.6235
1.6860
1.7485
1.8110
1.8735
1.9360
1.9985
.0000 +.0005 .0000
.0025 – .0000 .0015
2.0610
2.1235
2.1860
+.0000
– .0010
2.2500
3.3125
2.3750
2.4375
2.5000
2.5625
2.6250
2.6875
2.7500
2.8125
2.8750
2.9375
3.0000
+.0000
– .0010
3.0625
3.1250
3.1875
3.2500
3.3125
3.3750
3.4375
3.5000
3.5625
3.6250
3.6875
3.7500
3.8125
3.8750
3.9375
4.0000
Clearance Fit
Hub
Bore
+.0015
– .0000
2.2500
2.3125
2.3750
2.4375
2.5000
2.5625
2.6250
2.6875
2.7500
2.8125
2.8750
2.9375
3.0000
+.0015
– .0000
3.0625
3.1250
3.1875
3.2500
3.3125
3.3750
3.4375
3.5000
3.5625
3.6250
3.6875
3.7500
3.8125
3.8750
3.9375
4.0000
Interference Fit
Clear- Hub Interance Bore ference
.0000 +.0010 .0000
.0025 – .0000 .0020
2.2480
2.3105
2.3730
2.4355
2.4980
2.5605
2.6230
2.6855
2.7480
2.8105
2.8730
2.9355
2.9980
.0000 +.0010 .0005
.0025 – .0000 .0025
3.0600
3.1225
3.1850
3.2475
3.3100
3.3725
3.4350
3.4975
3.5600
3.6225
3.6850
3.7475
3.8100
3.8725
3.9350
3.9975
H For shaft diameters larger than 17.000", use an average interference fit of.0005" per
inch of shaft diameter within the following bore tolerances:
+.0025, –.0000 for over 17" to 20" dia. incl.
+.003,–.000 for over 20" to 30" dia. incl.
+.004,–.000 for over 30" to 40" dia. incl.
Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1
clearance fit.).
Shaft
Dia
+.0000
– .0010
4.0625
4.1250
4.1875
4.2500
4.3125
4.3750
4.4375
4.5000
4.5625
4.6250
4.6875
4.7500
4.8125
4.8750
4.9375
5.0000
5.0625
5.1250
5.1875
5.2500
5.3125
5.3750
5.4375
5.5000
5.5625
5.6250
5.6875
57500
5.8125
5.8750
5.9375
6.0000
6.2500
6.5000
Clearance Fit Interference Fit
Hub
Bore
+.0015
– .0000
4.0625
4.1250
4.1875
4.2500
4.3125
4.3750
4.4375
4.5000
4.5625
4.6250
4.6875
4.7500
4.8125
4.8750
4.9375
5.0000
5.0625
5.1250
5.1875
5.2500
5.3125
5.3750
5.4375
5.5000
5.5625
5.6250
5.6875
5.7500
5.8125
5.8750
5.9375
6.0000
6.2500
6.5000
Clearance
.0000
.0025
Hub InterBore ference
+.0015 .0010
– .0000 .0035
4.0590
4.1215
4.1840
4.2465
4.3090
4.3715
4.4340
4.4965
4.5590
4.6215
4.6840
4.7465
4.8090
4.8715
4.9340
4.9965
5.0585 .0015
5.1210 .0040
5.1835
5.2460
5.3085
5.3710
5.4335
5.4960
5.5585
5.6210
5.6835
5.7460
5.8085
5.8710
5.9335
5.9960
6.2460
6.4960
Shaft
Dia
+.0000
– .0010
6.7500
7.0000
+.0000
– .0010
7.250
7.500
7.750
8.000
8.250
8.500
8.750
9.000
9.250
9.500
9.750
10.000
10.250
10.500
10.750
11.000
11.250
11.500
11.750
12.000
12.500
13.000
13.500
14.000
14.500
15.000
+.000
– .001
15.500
16.000
16.500
17.000
Interference Fit
Hub
InterBore
ference
+.0015 .0015
– .0000 .0040
6.7460
6.9960
+.0020 .0020
– .0000 .0050
7.2450
7.4950
7.7450
7.9950
8.2445 .0025
8.4945 .0055
8.7445
8.9945
9.2440 .0030
9.4940 .0060
9.7440
9.9940
10.2435 .0035
10.4935 .0065
10.7435
10.9935
11.2430 .0040
11.4930 .0070
11.7430
11.9930
12.4925 .0045
12.9925 .0075
13.4920 .0050
13.9920 .0080
14.4915 .0055
14.9915 .0085
+.0025 .0055
– .0000 .0090
15.4910
15.9910
16.4905 .0060
16.9905 .0095
H
DATUM SURFACES & SETSCREW LOCATIONS
Dial Indicator
ALL
SIZES
S
1010
thru
1070G
S
S
CHAMFER
1080
thru
1300G
CHAMFER
GAP END
CHAMFER
SIZES 1020-1070
TYPE G (RIGID)
TYPE G (FLEX)
TYPE T & F
CHAMFER
S
S
CHAMFER
SIZES 1080-1160
TYPE WA21
S
S
CHAMFER
H
S
CHAMFER
CHAMFER
TYPE T31 SHAFT HUB
427-108
August 2003
Supersedes 4-96
N - Hub
A - Hub
TYPE FD
CHAMFER
S
S
CHAMFER
TYPE FDC
10, 11, & 12
CHAMFER
TYPE FDC
20, 21, & 22
TYPE T41
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
Couplings • Steel Hub Boring, Keyseating, Setscrews & Puller Bolt Holes
All Types
(Page 3 of 8)
NOTE: See right hand column for proper keyway location for FD
Disc Coupling with type “N” hubs and FDC disc coupling
hubs.
6. If a setscrew is required, drill and tap over keyway (Fig. 4) per
Tables 5, 6, 7, 8, and 9 on Pages 3, 4, and 5. Do not
chamfer setscrew hole, deburr with a file.
7. For optional puller bolt holes, for all types of couplings,
see Tables 10 thru 19 on Pages 6 thru 8.
TABLE 4 — Recommended Keyways for Hubs
with One Keyway — Inches
Keyway Size H
Nominal Bore
Over
Thru
Width x Depth
Width
Tolerance †
.4375
.5625
.875
1.250
1.375
1.750
2.250
2.750
3.250
3.750
4.500
5.500
6.500
7.500
9.000
11.000
13.000
15.000
.5625
.875
1.250
1.375
1.750
2.250
2.750
3.250
3.750
4.500
5.500
6.500
7.500
9.000
11.000
13.000
15.000
18.000
.125 x .062
.1875 x .094
.250 x .125
.3125 x .156
.375 x .188
.500 x .250
.625 x .312
.750 x .375
.875 x .438
1.000 x .500
1.250 x .625
1.500 x .750
1.750 x .750
2.000 x .750
2.500 x .875
3.000 x 1.000
3.500 x 1.250
4.000 x 1.500
+.0020 -.0000
+.0020 -.0000
+.0020 -.0000
+.0020 -.0000
+.0025 -.0000
+.0025 -.0000
+.0030 -.0000
+.0030 -.0000
+.0030 -.0000
+.0030 -.0000
+.0035 -.0000
+.0035 -.0000
+.0040 -.0000
+.0040 -.0000
+.0045 -.0000
+.0045 -.0000
+.0050 -.0000
+.0050 -.0000
VARIOUS SETSCREW LOCATIONS
(VIEWED FROM GAP END OF HUB)
ANGLE TOLERANCE ±5°
90°
90°
180
Figure 2
Figure 1
Figure 3
Figure 4
-90°
120°
Figure 5
R°
Figure 6
Figure 7
L°
Figure 8
STANDARD LOCATION OF KEYWAYS, RELATIVE TO THE
FLANGE HOLES, FOR TYPE FD DISC COUPLINGS WITH
TYPE N HUBS
TWO KEYWAYS
ONE KEYWAY
90°
180°
120°
H One square key for bore diameters thru 6.500"; one rectangular key for bore
diameters over 6.500".
† Depth tolerance: +.010" to +.020".
FD04N
FD06N
TABLE 5 — Drill & Tap Size
Inch
Tap Size UNC
#6-32
#8-32
#10-24
.250-20
.3125-18
.375-16
.4375-14
.500-13
.625-11
.750-10
.875-9
1.000-8
1.125-7
1.250-7
1.500-6
2.000-4.5
Millimeters
Drill
Tap Size-6H
Drill
.1094
#29
#25
#7
F
.3125
U
.4219
.5312
.6562
.7656
.875
.9844
1.1094
1.3438
1.7812
M5 x 0.8
M6 x 1
M8 x 1.25
M10 x 1.25
M12 x 1.75
4.2
5.0
6.8
8.5
10.2
FD08N
LOCATION OF KEYWAYS, RELATIVE TO BOLT AND
CLEARANCE HOLES FOR TYPE FDC DISC COUPLING HUBS
Size 112FDC
Sizes 162 thru 500FDC
Note: Setscrews or keyways must not fall under fitted bolt
holes or large clearance holes (shaded). No special keyway
location required if furnished without setscrew.
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
427-108
August 2003
Supersedes 4-96
Steel Hub Boring, Keyseating, Setscrews, & Puller Bolt Holes • Couplings
(Page 4 of 8)
All Types
S
S
S
S
L
-L
-L
L
A HUB
N HUB
4 BOLT
(C HUB)
6 BOLT
(C HUB)
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C HUB
STANDARD
C HUB
REVERSED
8 BOLT
(C HUB)
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“C” HUBS - SETSCREWS OR KEYWAYS WITH SETSCREWS MUST NOT FALL UNDER FITTED BOLT HOLES
OR LARGE CLEARANCE HOLES. NO SPECIAL KEYWAY LOCATION REQUIRED IF
FURNISHED WITHOUT SETSCREW.
6 BOLT
(N HUB)
4 BOLT
(N HUB)
8 BOLT
(N HUB)
“N” HUBS - NO KEYWAYS PERMITTED UNDER LARGE CLEARANCE HOLES (UNDER SCALLOPS).
6 BOLT
(A HUB)
4 BOLT
(A HUB)
8 BOLT
(A HUB)
“A” HUBS - NO SPECIAL KEYWAY LOCATION REQUIRED
TABLE 6 — Type FDG/FDP Setscrew Location & Size — Millimeter (Inch) (See Figures Above)
COUPLING
SIZE
C Hub
A HUB
N HUB
Standard Metric Setscrew
S
mm (in)
L
mm (in)
S
mm (in)
L
mm (in)
S
mm (in)
L
mm (in)
20FDG
30FDG
40FDG
50FDG
60FDG
70FDG
80FDG
90FDG
100FDG
110FDG
45 (1.77)
46 (1.81)
56 (2.20)
68 (2.68)
85 (3.35)
95 (3.74)
84 (3.31)
93 (3.66)
104 (4.09)
111 (4.37)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (0.39)
10 (0.39)
12 (0.47)
35 (1.38)
35 (1.38)
38 (1.50)
48 (1.89)
54 (2.13)
79 (3.11)
84 (3.31)
93 (3.66)
104 (4.09)
111 (4.37)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (0.39)
10 (0.39)
12 (0.47)
35 (1.38)
35 (1.38)
38 (1.50)
48 (1.89)
54 (2.13)
79 (3.11)
84 (3.31)
93 (3.66)
104 (4.09)
111 (4.37)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (0.39)
10 (0.39)
12 (0.47)
M5 x 0,8
M5 x 0,8
M6 x 1,0
M6 x 1,0
M8 x 1,25
M8 x 1,25
M8 x 1,25
M10 x 1,5
M10 x 1,5
M12 x 1,75
M5 x 5mm
M5 x 5mm
M6 x 6mm
M6 x 6mm
M8 x 8mm
M8 x 8mm
M8 x 8mm
M10 x 10mm
M10 x 10mm
M12 x 12mm
20FDP
30FDP
40FDP
50FDP
60FDP
70FDP
85FDP
95FDP
105FDP
115FDP
125FDP
42 (1.65)
44 (1.73)
53 (2.09)
64 (2.52)
81 (3.19)
90 (3.54)
96 (3.78)
110 (4.33)
120 (4.72)
128 (5.04)
132 (5.20)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (0.39)
10 (0.39)
12 (0.47)
16 (0.63)
35 (1.38)
35 (1.38)
38 (1.50)
48 (1.89)
54 (2.13)
79 (3.11)
79 (3.11)
90 (3.54)
105 (4.13)
116 (4.57)
128 (5.04)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (.39)
10 (.39)
12 (.47)
16 (.63)
35 (1.38)
35 (1.38)
38 (1.50)
48 (1.89)
54 (2.13)
79 (3.11)
79 (3.11)
90 (3.54)
105 (4.13)
116 (4.57)
128 (5.04)
5 (0.20)
5 (0.20)
6 (0.24)
6 (0.24)
8 (0.31)
8 (0.31)
8 (0.31)
10 (0.39)
10 (0.39)
12 (0.47)
16 (0.63)
M5 x 0.8
M5 x 0,8
M6 x 1,0
M6 x 1,0
M8 x 1,25
M8 x 1,25
M8 x 1,25
M10 x 1,5
M10 x 1,5
M12 x 1,75
M16 x 2,0
M5 x 5mm
M5 x 5mm
M6 x 6mm
M6 x 6mm
M8 x 8mm
M8 x 8mm
M8 x 8mm
M10 x 10mm
M10 x 10mm
M12 x 12mm
M16 x 16mm
427-108
August 2003
Supersedes 4-96
Tap Size - 6H Setscrew Size
mm
mm
Part
Number
Optional Inch Setscrew
Part
Number
Tap Size
(UNC-2B)
Setscrew Size
Inch
2915656
2915656
2915657
2915657
2915658
2915658
2915658
2917103
2917103
2917104
#10-24
#10-24
0.250-20
0.250-20
0.3125-18
0.3125-18
0.3125-18
0.375-16
0.375-16
0.500-13
#10-24 x 0.188
#10-24 x 0.188
0.250-20 x 0.25
0.250-20 x 0.25
0.3125-18 x 0.312
0.3125-18 x 0.375
0.3125-18 x 0.375
0.375-16 x 0.4375
0.375-16 x 0.500
0.500-13 x 0.375
908583
908583
908501
908501
908535
908536
908536
908594
908509
908515
2915656
2915656
2915657
2915657
2915658
2915658
2915658
2917103
2917103
2917104
2918694
#10-24
#10-24
0.250-20
0.250-20
0.3125-18
0.3125-18
0.3125-18
0.375-16
0.375-16
0.500-13
0.625-11
#10-24 x 0.188
#10-24 x 0.188
0.250-20 x 0.25
0.250-20 x 0.25
0.3125-18 x 0.312
0.3125-18 x 0.375
0.3125-18 x 0.375
0.375-16 x 0.4375
0.375-16 x 0.4375
0.500-13 x 0.375
0.625-11 x 0.500
908583
908583
908501
908501
908535
908536
908536
908594
908594
908515
908584
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
Couplings • Steel Hub Boring, Keyseating, Setscrews & Puller Bolt Holes
All Types
(Page 5 of 8)
TABLE 7 — Types T, F & WA Setscrew Location & Size — Inches (See Figures on Pages 2 & 3)
T31 & T35 Shaft Hubs †
T Hubs
1020T
1030T
1040T
1050T
1060T
1070T
1080T
1090T
T41 Hubs
F Hubs
WA21 Hubs
S†
Setscrew ‡
S†
Setscrew ‡
H†
Setscrew ‡
Size
S†
Setscrew ‡
Size
S†
Setscrew ‡
1.54
1.54
1.58
1.76
#8-32 x .125 H
.250-20 x .188
.250-20 x .188
.250-20 x .188
1.08
1.24
1.08
1.60
.250-20 x .188
.250-20 x .188
.375-16 x .250
.375-16 x .250
.22
.22
.22
.22
.250-20 x .188
.250-20 x .188
.250-20 x .188
.250-20 x .188
1.12
1.38
1.38
1.38
.250-20 x .188
.250-20 x .188
.250-20 x .188
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
1.70
1.84
1.96
2.24
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
.32
.32
.32
.32
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
1.38
1.82
1.82
2.24
2.24
.375-16 x .250
.375-16 x .312
.375-16 x .312
.500-13 x .375
.500-13 x .500
1020WA
1030WA
1040WA
1050WA
1060WA
1070WA
1080WA
1090WA
.78
1.00
1.03
1.31
2.06
2.12
2.54
2.82
3F
4F
5F
6F
7F
8F
9F
10F
11F
.250-20 x .375
.250-20 x .375
.250-20 x .312
.3125-18 x .438
.375-16 x .375
.375-16 x .500
.500-13 x .625
.625-11 x .500
SIZE
1.48
1.62
1.62
1.62
H Manufacturing Option: Drill .2188 dia. counterbore to depth for a minimum of .25 thread length.
† Tolerance ± .030".
‡ For UNC-2B tapped hole.
TABLE 8 — Type FD & G Setscrew Location & Size — Inches (See Figures on Pages 2 & 3)
FD - A Hubs H
G Hubs H
FD - N Hubs H
SIZE
S†
Setscrew ‡
Size
S†
Setscrew ‡
...
...
...
85FD
190FD
340FD
625FD
1080FD
1700FD
2500FD
3160FD
4630FD
6470FD
8770FD
...
...
...
2.00
2.25
2.75
3.00
3.75
4.25
4.00
4.75
5.50
5.50
6.25
...
...
...
.375-16 x .375
.500-13 x .500
.500-13 x .500
.625-11 x .500
.625-11 x .500
.625-11 x .625
.625-11 x .500
.625-11 x .625
.625-11 x .625
.750-10 x .750
.750-10 x .750
8FD
23FD
43FD
85FD
190FD
340FD
625FD
1080FD
1700FD
2500FD
3160FD
4630FD
6470FD
8770FD
1.12
1.25
1.50
1.62
2.00
2.38
2.62
3.00
3.50
4.00
4.75
5.50
5.75
6.50
.250-20 x .188
.250-20 x .188
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
.375-16 x .250
.500-13 x .375
.625-11 x .500
.625-11 x .500
.625-11 x .500
.625-11 x .625
.625-11 x .625
Size
1010
1015
1020
1025
1030
1035
1040
1045
1050
1055
1060
1070
Flex
Rigid
S†
S†
.26
.38
.50
.50
.50
.62
.76
.76
1.00
1.00
1.26
1.38
1.00
1.50
1.76
2.00
2.00
2.50
2.82
3.00
3.50
3.50
4.00
4.50
Setscrew ‡
.250-20 x .312
.375-16 x .375
.500-13 x .500
.500-13 x .625
.500-13 x .750
.500-13 x .750
.625-11 x 1.000
.625-11 x 1.000
.625-11 x 1.000
.750-10 x 1.250
.875-9 x 1.250
.875-9 x 1.250
H Couplings are normally furnished with an interference fit, unless otherwise specified. Maximum bores are LESS for INTERFERENCE FIT bored hubs with a set screw
OVER the keyway. Refer to Engineering 427-105 for allowable bores.
† Tolerance ± .030".
‡ For UNC-2B taped hole.
TABLE 9 — Type FDC Setscrew Location & Size — Inches (See Figures on Pages 2 & 3)
SIZE
112
162
187
225
262
300
350
400
450
500
Dimension S † (Inch)
Types 10, 11 & 12
Types 20, 21 & 22
1.20
1.32
1.46
1.65
2.05
2.44
2.76
3.31
3.74
4.25
1.48
1.73
1.87
2.06
2.58
3.03
3.45
4.09
4.61
5.19
Setscrew – Inch H ‡
10-24 x .188
10-24 x .188
.250-20 x .250
.250-20 x .250
.312-18 x .312
.312-18 x .375
.312-18 x .375
.375-16 x .438
.375-16 x .500
.500-13 x .375
Setscrew — MM H l
M5 x 5
M5 x 5
M6 x 6
M6 x 6
M8 x 8
M8 x 8
M8 x 8
M10 x 10
M10 x 10
M12 x 12
H Metric series setscrews are standard. Inch series setscrews are available as an option if specified.
† Tolerance ± .030".
‡ For UNC-2B tapped hole.
l For 6H tapped hole.
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
427-108
August 2003
Supersedes 4-96
Steel Hub Boring, Keyseating, Setscrews, & Puller Bolt Holes • Couplings
(Page 6 of 8)
All Types
TABLE 10 — Type G Gear Coupling Puller
Bolt Holes — Inches
SIZE
B.C.
Tap Size – UNC
TABLE 11 — Type T Steelflex Coupling Puller
Bolt Holes — Inches
T-Hub
SIZE
B.C. H
# 6-32 x .38
# 6-32 x .38
# 10-24 x .38
# 10-24 x .38
2.812
3.125
3.875
4.250
.375-16 x
.375-16 x
.375-16 x
.375-16 x
.250-20 x .38
.250-20 x .38
.250-20 x .38
.3125-18 x .44
4.938
5.250
4.062
4.625
.375-16 x †
.375-16 x †
.375-16 x .50
.375-16 x .50
5.250
5.875
6.625
7.750
.375-16 x .50
.4375-14 x .62
.4375-14 x .62
.625-11 x .82
5.750
6.562
7.500
8.188
.625-11 x .82
.625-11 x .82
.750-10 x .94
.750-10 x .94
1140T
1150T
1160T
1170T
9.125
10.375
11.750
13.250
.625-11 x .82
.750-10 x .94
.875- 9 x 1.06
1.125- 7 x 1.25
9.250
.750-10 x .94
1180T
1190T
1200T
1210T
14.875
16.250
17.937
19.562
1.250- 7 x 1.50
1.500- 6 x 1.75
1.500- 6 x 1.75
1.500- 6 x 1.75
1220T
1230T
1240T
1250T
1260T
21.312
23.062
24.938
27.188
29.500
1.500- 6 x 1.75
1.500- 6 x 1.75
1.500- 6 x 1.75
1.500- 6 x 1.75
1.500- 6 x 1.75
Rigid Hub
1010G †
1015G †
1020G
1025G
2.060
2.750
3.500
4.440
2.625
3.375
4.250
5.240
.375-16
.375-16
.375-16
.375-16
x .50
x .50
x .50
x .50
1020T
1030T
1040T
1050T
1.531
1.875
2.125
2.500
1030G
1035G
1040G
1045G
5.060
6.000
7.125
7.875
6.160
7.180
8.260
9.180
.375-16
.500-13
.625-11
.625-11
x .50
x .62
x .76
x .76
1060T
1070T
1080T
1090T
2.875
3.312
3.937
4.562
1050G
1055G
1060G
1070G
8.500
9.375
10.375
12.250
10.200
11.200
12.460
14.500
.750-10 x .88
.750-10 x .88
.750-10 x .88
1.000- 8 x 1.18
1100T
1110T
1120T
1130T
1080/2080G
1090/2090G
1100/2100G
1110/2110G
12.500
14.000
15.500
17.500
15.438
17.250
18.750
20.500
1.000- 8
1.250- 7
1.500- 6
1.500- 6
x 1.18
x 1.50
x 1.75
x 1.75
1120/2120G
1130/2130G
1140/2140G
1150/2150G
19.500
21.000
23.000
25.000
22.625
24.688
26.188
28.312
1.500- 6
1.500- 6
1.500- 6
1.500- 6
x 1.75
x 1.75
x 1.75
x 1.75
1160/2160G
1180/2180G
1200/2200G
1220/2220G
27.000
30.500
34.000
37.500
29.875
33.875
37.375
41.875
1.500- 6 x 1.75
1.500- 6 x 1.75
2.000-4.5 x 2.38
2.000-4.5 x 2.38
1240/2240G
1260/2260G
1280/2280G
1300/2300G
41.000
45.000
49.000
53.000
44.375
...
...
...
2.000-4.5
2.000-4.5
2.000-4.5
2.000-4.5
† Size 1010G Max Bore:
Flex Hub = 1.500
Rigid Hub = 2.000
Size 1015G Max Bore:
Flex Hub = 2.125
Rigid Hub = 2.750
x 2.38
x 2.38
x 2.38
x 2.38
B.C.
427-108
August 2003
Supersedes 4-96
Tap Size – UNC
†
†
†
†
H Locate puller bolt holes 90° from keyway except as noted by Footnote (†)
† Drill and tap thru flange between existing holes. Relation to keyway may
vary freely.
TABLE 12 — Type WA Torus® Coupling
Puller Bolt Holes — Inches
SIZE
B.C.
Shaft Hub
Tap Size – UNC
Flex Hub
No. 1 and No. 6 Hubs
B.C.
Tap Size – UNC
1020WA
1030WA
1040WA
1050WA
1060WA
2.750
3.000
3.625
4.125
4.875
.3125-18 x .44
.3125-18 x .50
.375-16 x .62
.375-16 x .62
.375-16 x .62
1070WA
1080WA
1090WA
1100WA
1110WA
5.250
6.000
7.250
8.875
8.875
.375-16 x .62
.500-13 x .88
.500-13 x .88
.500-13 x .88
.500-13 x 1.00
1120WA
1130WA
1140WA
1150WA
1160WA
8.750
9.000
8.875
9.375
9.875
.625-11 x 1.12
.750-10 x 1.25
.750-10 x 1.30
.875-9 x 1.50
.875-9 x 1.50
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
Couplings • Steel Hub Boring, Keyseating, Setscrews & Puller Bolt Holes
All Types
(Page 7 of 8)
TABLE 13 — Type A Airflex Coupling Puller
Bolt Holes — Inches
Standard Hub
SIZE
B.C.
Tap Size – UNC
24A
28A
33A
39A
3.000
3.188
3.625
4.375
5.250
6.500
7.375
9.125
.500-13 x .75
.750-10 x 1.12
.750-10 x 1.12
1.000- 8 x 1.50
46A
53A
62A
72A
85A
10.500
11.750
13.500
15.500
17.000
1.000- 8 x 1.50
1.000- 8 x 1.50
1.000- 8 x 1.50
1.000- 8 x 1.50
1.000- 8 x 1.50
15A
16A
18A
21A
TABLE 14 — Type F Steelflex® Coupling Puller
Bolt Holes — Inches
SIZE
F-Hub
B.C.
B.C.
.312-18 x .50
.375-16 x .62
.375-16 x .62
.500-13 x .75
Tap Size – UNC
3F
4F
5F
6F
1.312
1.562
1.812
2.312
.250-20
.250-20
.312-18
.312-18
x .38
x .38
x .50
x .50
7F
8F
9F
10F
11F
2.625
3.250
3.500
4.062
4.437
.375-16
.375-16
.375-16
.500-13
.500-13
x .62
x .62
x .62
x .75
x .75
12F
13F
14F
15F
4.750
5.250
5.750
6.250
.625-11
.625-11
.750-10
.750-10
x 1.00
x 1.00
x 1.12
x 1.12
16F
17F
18F
190F
7.125
8.000
9.000
9.750
.750-10 x 1.12
.875- 9 x 1.38
.875- 9 x 1.38
1.000- 8 x 1.50
TABLE 15 — Type FD Freedom® Disc
Coupling Puller Bolt
Holes — Inches
A-Hub
SIZE
N-Hub
B.C. H
Tap Size – UNC
8FD04
23FD04
43FD04
85FD06
190FD06
...
...
...
3.940
4.500
...
...
...
.375-16 x .75
.375-16 x .75
2.440
3.120
3.750
3.810
4.090
.375-16 x †
.375-16 x †
.375-16 x †
.375-16 x †
.375-16 x †
340FD06
625FD06
1080FD06
1700FD06
2500FD08
3160FD08
4630FD08
6470FD08
8770FD08
5.310
6.000
7.000
8.250
7.250
8.600
9.750
10.750
11.750
.375-16 x .75
.500-13 x 1.0
.500-13 x 1.0
.625-11 x 1.2
.500-13 x 1.0
.625-11 x 1.2
.625-11 x 1.2
.750-10 x 1.5
.750-10 x 1.5
4.750
5.000
6.000
5.500
6.600
7.400
8.200
8.800
9.600
.375-16 x †
.375-16 x †
.375-16 x †
.375-16 x .75
.375-16 x .75
.500-13 x 1.0
.625-11 x 1.2
.625-11 x 1.2
.625-11 x 1.2
B.C.
H
Tap Size – UNC
H Locate puller bolt holes 90° from keyway except as noted by a (†.)
† Drill and tap thru flange between existing holes.
TABLE 16 — Type FDC Freedom Disc
Coupling Puller Bolt Holes –
Inches
Falk Preferred (Std)
For API 610 (.375 Dia Min)
SIZE
Max
Bore
BC Dia
Tap Size —
UNC
Max
Bore
BC Dia
Tap Size —
UNC
112FDC
162FDC
187FDC
225FDC
262FDC
300FDC
350FDC
400FDC
450FDC
500FDC
.750
1.375
1.625
2.125
2.500
3.000
3.750
4.250
4.625
5.250
1.160
1.840
2.190
2.690
3.160
3.690
4.380
5.000
5.500
6.090
.250-20 x .50
.250-20 x .50
.312-18 x .62
.312-18 x .62
.375-16 x .75
.375-16 x .75
.375-16 x .75
.437-14 x .88
.500-13 x 1.00
.500-13 x 1.00
...
1.000
1.375
1.875
2.500
3.000
3.750
4.250
4.625
5.250
...
1.660
2.060
2.560
3.160
3.690
4.380
5.000
5.500
6.090
...
.375-16 x.75
.375-16 x.75
.375-16 x.75
.375-16 x.75
.375-16 x.75
.375-16 x.75
.437-14 x. 88
.500-13 x 1.00
.500-13 x 1.00
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com
427-108
August 2003
Supersedes 4-96
Steel Hub Boring, Keyseating, Setscrews, & Puller Bolt Holes • Couplings
(Page 8 of 8)
All Types
TABLE 17 — FDG/FDP Puller Bolt
Holes — Metric
A-Hub ‡
N-Hub
SIZE Bolt
Circle
74
88
108
130
147
170
191
216
230
267
198
218
244
271
303
20
30
40
50
60
70
80
90
100
110
85
95
105
115
125
Tap
Size
M6-1.0-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M12-1.75-6H
M14-2.0-6H
M16-2.0-6H
M16-2.0-6H
M12-1.75-6H
M12-1.75-6H
M14-2.0-6H
M16-2.0-6H
M16-2.0-6H
Max Bolt
Bore Circle
45
55
60
75
90
100
95
110
121
137
105
120
135
150
175
74
88
108
130
147
170
191
216
230
267
198
218
244
271
303
Tap
Size
M5-0.8-6H
M5-0.8-6H
M6-1.0-6H
M8-1.25-6H
M10-1.5-6H
M10-1.5-6H
M12-1.75-6H
M14-2.0-6H
M16-2.0-6H
M16-2.0-6H
M12-1.75-6H
M12-1.75-6H
M14-2.0-6H
M16-2.0-6H
M16-2.0-6H
TABLE 18 — FDG/FDP API 610 Puller Bolt
Holes – Inches
Max Bolt
Bore Circle
45
55
60
75
90
100
95
110
121
137
125
135
155
170
190
28
47
54
66
77
92
191
216
230
267
105
130
144
156
190
A-Hub ‡
N-Hub
C-Hub
Tap
Size
Max
Bore
SIZE Bolt
Circle
M6-1.0-6H
M6-1.0-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M12-1.75-6H
M14-2.0-6H
M16-2.0-6H
M16-2.0-6H
M10-1.5-6H
M10-1.5-6H
M10-1.5-6H
M12-1.75-6H
M12-1.75-6H
28
43
50
60
70
82
95
110
121
137
95
110
120
140
165
30 3.47 .375-16 x Q
40 4.26 .375-16 x Q
50 5.12 .375-16 x Q
60 5.79 .375-16 x Q
70 6.70 .375-16 x Q
80 7.52 .375-16 x Q
90 8.50 .375-16 x Q
100 9.05 .375-16 x Q
110 10.51 .375-16 x Q
85 7.80 .375-16 x Q
95 8.59 .375-16 x Q
105 9.61 .375-16 x Q
115 10.67 .375-16 x Q
125 11.93 .375-16 x Q
‡ Standard puller holes are included without extra charge.
Tap
Size
Max Bolt
Bore Circle
2.000
2.250
2.750
3.250
3.625
3.500
4.000
4.500
5.000
4.250
4.625
5.250
5.875
6.875
3.47
4.26
5.12
5.79
6.70
7.52
8.50
9.05
10.51
7.80
8.59
9.61
10.67
11.93
Tap
Size
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
.375-16 x Q
C-Hub
Max Bolt
Bore Circle
Tap
Size
2.000 1.86 .375-16 x Q
2.250 2.13 .375-16 x Q
2.750 2.60 .375-16 x Q
3.250 3.04 .375-16 x Q
3.625 3.63 .375-16 x Q
3.500 7.52 .375-16 x Q
4.000 8.50 .375-16 x Q
4.500 9.05 .375-16 x Q
5.000 10.51 .375-16 x Q
5.000 4.14 .375-16 x Q
5.250 5.12 .375-16 x Q
6.000 5.67 .375-16 x Q
6.500 6.15 .375-16 x Q
7.500 7.49 .375-16 x Q
Max
Bore
1.6.25
1.875
2.250
2.652
3.000
3.500
4.000
4.500
5.000
3.500
4.00
4.500
5.000
6.000
Q Drill and tap thru flange between existing holes.
† Metric puller holes meeting API 610 are standard and included with A hubs.
Shaded sizes do not meet API 610 Standards.
TABLE 19 — API Metric Puller Bolt Holes
N Hub
Size
20
30
40
50
60
70
80
90
100
110
85
95
105
115
125
Bolt
Circle
88
108
130
147
170
191
216
230
267
198
218
244
271
303
427-108
August 2003
Supersedes 4-96
Tap
Size
A Hub
C Hub
Max
Bolt
Tap
Max
Bolt
Tap
Bore
Circle
Size
Bore
Circle
Size
API 610 10mm minimum puller hole is not practical for the hubs shaded
M10-1.5-6H
55
88
M10-1.5-6H
55
M10-1.5-6H
60
108
M10-1.5-6H
60
50
M10-1.5-6H
M10-1.5-6H
75
130
M10-1.5-6H
75
62
M10-1.5-6H
77
M10-1.5-6H
M10-1.5-6H
90
M10-1.5-6H
100
92
M10-1.5-6H
M12-1.75-6H
95
191
M12-1.75-6H
M14-2.0-6H
110
216
M14-2.0-6H
M16-2.0-6H
121
230
M16-2.0-6H
Standard Puller Bolt Holes
M16-2.0-6H
137
267
M16-2.0-6H
Meet the Requirements
M12-1.75-6H
105
105
M10-1.5-6H
for API610
M12-1.75-6H
120
130
M10-1.5-6H
M14-2.0-6H
135
144
M10-1.5-6H
M16-2.0-6H
150
156
M12-1.75-6H
M16-2.0-6H
175
190
M12-1.75-6H
Max
Bore
50
60
70
82
95
110
121
137
95
110
120
140
165
Rexnord Industries, LLC, Coupling Group
5555 S. Moorland Rd., New Berlin, WI 53151-7953 USA Telephone: 262-796-4060
Fax: 262-796-4064 e-mail: info@rexnord.com web: www.rexnord.com