Emerson Bettis 500 User Manual

Installation and Operation Manual
E2K-405-0218 Rev. 2 February 2018
89
Appendix
Appendix
A.7 Common Bolt Tightening Torques
Grade 1 Grade 2 Grades 5, 5.2 & 5.1 Grades 8, 8.1 & 8.2
Thread Size &
Pitch
Clamp Load (lb)
Tightening
Torque (ft-lb)
Clamp Load (lb)
Tightening
Torque (ft-lb)
Clamp Load (lb)
Tightening
Torque (ft-lb)
Clamp Load (lb)
Tightening
Torque (ft-lb)
6 - 32 225 0.52 375 0.86 579 1.33 818 1.88
8 - 32 347 0.95 578 1.58 893 2.44 1260 3.44
10 - 24 433 1.37 722 2.29 1116 3.53 1575 4.99
12 - 24 599 2.16 998 3.59 1543 5.55 2178 7.84
1/4 - 20 787 3.28 1312 5.47 2027 8.45 2862 11.9
5/16 -18 1297 6.75 2162 11.3 3341 17.4 4716 24.6
3/8 - 16 1918 12.0 3197 20.0 4941 30.9 6975 43.6
7/16 - 14 2631 19.2 4385 32.0 6777 49.4 9567 69.8
1/2 - 1 3 3512 29.3 5853 48.8 9046 75.4 12771 106
9/16 - 12 4505 42.2 7508 70.4 11603 109 16380 154
5/8 - 11 5594 58.3 9323 97.1 14408 150 20340 212
3/4 - 10 8267 103 8267 103 21293 266 30060 376
7/8 - 9 11435 167 11435 167 29453 430 41580 606
1- 8 14999 250 14999 250 33633 561 54540 909
1-1/8 - 7 18884 354 18884 354 42347 794 68670 1288
1-1/4 - 7 23983 500 23983 500 53780 1120 87210 1817
1-3/8 - 6 28586 655 28586 655 64103 1469 103950 2382
1-1/2 - 6 34774 869 34774 869 77978 1949 126450 3161
English Units: (Coarse Thread Series)
Tightening Torque = K * D * P
K = 0.2 (dry, unlubricated)
Clamp Load (P) = 75% of the Proof Load
D = Nominal Thread Size
The values presented in these tables are representative and have been compiled for the user’s benet. Results can be inuenced by
any number of variables including 1) excessive lubrication, 2) excessive design clamp load, 3) nicked or binding threads, 4) non-parallel
mating surfaces, and 5) inadequate torque control, to name a few. Therefore, Load expressly disclaims liability of any kind associated with
the application of the data shown herein.
Class 4.6 Class 5.8 Class 9.8 Class 10.9
Thread Size &
Pitch
Clamp Load (KN)
Tightening
Torque (N*m)
Clamp Load (KN)
Tightening
Torque (N*m)
Clamp Load (KN)
Tightening
Torque (N*m)
Clamp Load (KN)
Tightening
Torque (N*m)
M6 X 1 3.41 4.09 5.73 6.87 9.80 11.76 12.5 15
M7 X 1 4.90 6.86 8.24 11.5 14.1 19.72 18.0 25
M8 X 1.25 6.20 9.93 10.4 16.7 17.8 28.55 22.8 36
M10 X 1.5 9.8 19.7 16.5 33.1 28.3 56.55 36.1 72
M12 X 1.75 14.3 34.3 24.0 57.7 41.1 98.63 52.5 126
M14 X 2 19.5 54.6 32.8 91.8 56.1 157 71.6 200
M16 X 2 26.6 85.2 44.7 143 76.5 245 97.7 313
M18 X 2.5 32.5 117 54.7 197 93.6 337 120 430
M20 X 2.5 41.5 166 69.8 279 119 478 153 610
M22 X 2.5 51.4 226 86.4 380 148 650 189 830
M24 X 3 59.8 287 101 483 172 826 220 1055
M27 X 3 77.8 420 131 706 224 1208 286 1543
M30 X 3.5 95.1 571 160 959 273 1641 349 2095
M33 X 3.5 118 776 198 1305 338 2233 432 2851
M36 X 4 138 997 233 1676 398 2868 509 3662
M39 X 4 165 1290 278 2170 476 3711 608 4739
Metric Units: (Coarse Thread Series)
Tightening Torque = K * D * P
K = 0.2 (dry, unlubricated)
Clamp Load (P) = 75% of the Proof Load
D = Nominal Thread Size

Emerson Bettis 500 Specifications

General

Brand	Emerson
Model	Bettis 500
Category	Controller
Language	English