Rexnord Thomas XTSR52 - Page 13

Thomas
®
XTSR52 Installation and Maintenance
(Page 13 of 13) Sizes 494-5258
CP3-002
September 2017
Supersedes 09-2016
Rexnord
5555 S. Moorland Rd., New Berlin, WI 53151-7953
Phone: 262-796-4060 Fax: 262-796-4064 www.rexnord.com
When possible, it is recommended that all locknuts have their tightening torque checked after several hours of initial operation.
For spare replacement parts, see Tables 1 and 2.
Table 6 – Lock Nut Tightening Torque
XTSR52
Coupling Size
"A" Dimension Std Hub
Locknut
Bolt Size
(mm)
Torque
Wrench
Size (in)
(in) (mm) (ft-lb) (Nm)
494 2.76 70.0 M5 4.7 6.4 8
644 3.35 85.0 M5 4.7 6.4 8
726 3.74 95.0 M5 4.7 6.4 8
826 4.25 108.0 M6 8.1 11 11
996 5.08 129.0 M8 18 24 14
1088 5.51 140.0 M8 18 24 15
1298 6.54 166.0 M10 39 53 18
1548 7.76 197.0 M12 66 90 21
1698 8.58 218.0 M14 110 150 22
1928 9.66 245.4 M16 162 220 24
2068 10.39 264.0 M18 236 320 27
2278 11.44 290.5 M20 266 360 30
2468 12.32 313.0 M22 384 520 32
2698 13.50 343.0 M24 575 780 36
2888 14.61 371.0 M27 885 1200 41
3058 15.55 395.0 M27 885 1200 41
3358 16.81 427.0 M30 1200 1600 46
3668 18.35 466.0 M33 1500 2000 50
3908 19.29 490.0 M33 1500 2000 50
4178 20.63 524.0 M36 2100 2800 55
4588 23.11 587.0 M42 3200 4400 65
4918 24.80 630.0 M45 4100 5600 70
5258 26.46 672.0 M48 4900 6700 75
Notes:
1. These torque values are approximate for steel bolts with lubricated threads.
2. Bolts should be held from rotating while the locknuts are tightened to the values shown. Do not tighten the fastener by rotating the bolt head.
Figure 13 Figure 14
3
3
7
5
8 5
2
2
6
6
1 14
4