Flange Mounting And Tightening Torques For Servomotors With Planetary Gearbox - Siemens SIMOTICS S-1FK2 Operating Instructions Manual

5.3.2 Flange mounting and tightening torques for servomotors with planetary
gearbox
Description
This chapter shows the designs and dimensions for flange mounting to a machine and the
associated tightening torques.
Note
Siemens AG recommends an anaerobic adhesive to enhance the friction lock between flange
and mounting surface.
The tightening torque specified in this table are theoretical values.
They are based on the following:
• Calculated according to VDI 2230
• The friction coefficient for screws and mounting surfaces is μ = 0.10
• The yield strength reaches 90 %
• The tools used correspond to type II, Classes A and D according to ISO 6789
Setting values of the torque tools
The setting values are rounded off values that correspond to a generally applicable scale division
or setting options.
• Set these values precisely
Strength class of
screws/nuts
8.8/8 1.15
10.9/10 1.68
12.9/12 1.97
Planetary gearboxes for servomotors
Operating Instructions, 09/2023, A5E50494253B AC
M3 M4 M5 M6
2.64 5.2 9.0
3.88 7.6 13.2
4.55 9.0 15.4
M8 M10 M12 M14
21.5 42.5 73.5 118
32 62.5 108 173
37.5 73.5 126 202
5.3 Mounting instructions
M16 M18 M20 M22
180 258 362 495
264 368 520 700
310 430 605 820
Mounting
M24
625
890
1040
49