fyhcat mounted bearings units

(2) Tightening torques of inner rings and eccentric locking collar
set screws (inch series) (recommended)
Nominal size
of screws
Tightening
torques, N · m
Part No. of applicable bearings
UCX-
UC2-,
ER2-, RB2-
SB-
10-32UNF 3 − − 201, 202
1/4-28UNF 4 201−206 X05 204−207
5/16-24UNF 8.5 207−209 X06−X08 208
3/8-24UNF 17.5 210−212 X09−X11 −
1/2-20UNF 28 213−218 X12−X18
5/8-18UNF 56 − X20
Remark When the application will be exposed to vibration and shock
load additional tightening will be required. The maximum torque
tightening should not exceed 1.5 times the normal torque tightening
specifications.
(3) NC concentric cap screw
tightening torque
Nominal size
of screws
Tightening
torques, N · m
M4 7.4− 8.2
M5
10.2−11.2
M6
17.6−19.4
M8 41.6−46
No.8-32UNC 7.4− 8.2
No.10-24UNC 10.2−11.2
1/4-20UNC 17.6−19.4
5/16-18UNC 41.6−46
Remark When the application will be
exposed to vibration and shock
load additional tightening will be
required. The maximum torque
tightening should not exceed 1.5
times the normal torque tightening
specifi cations.
Appendix Table 4 Tightening Torques of Adapter Lock Nuts (reference)
Tightening torques, N · m
Bore code
UK200 UKX00 UK300
Standard load Heavy load Standard load Heavy load Standard load Heavy load
min. Max. (Max. × 1.5) min. Max. (Max. × 1.5) min. Max. (Max. × 1.5)
05 25 38 56 35 53 79 30 45 68
06 30 45 68 40 60 90 45 68 101
07 40 60 90 50 75 113 60 90 135
08 50 75 113 75 113 169 80 120 180
09 60 90 135 75 113 169 120 180 270
10 75 113 169 110 165 248 150 225 338
11 100 150 225 140 210 315 180 270 405
12 130 195 293 165 248 371 225 338 506
13 150 225 338 195 293 439 265 398 596
15 170 255 383 215 323 484 375 563 844
16 200 300 450 255 383 574 450 675 1,013
17 220 330 495 295 443 664 530 795 1,193
18 260 390 585 340 510 765 610 915 1,373
19 − − − − − − 710 1,065 1,598
20 − − − 490 735 1,103 885 1,328 1,991
22 − − − − − − 1,220 1,830 2,745
24 − − − − − − 1,470 2,205 3,308
26 − − − − − − 1,770 2,655 3,983
28 − − − − − − 2,150 3,225 4,838
361