Siemens SIMOTICS T-1FW68, Configuration Manual

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Configuring
5.2 Mounting
1FW68 radial segment motors
Configuration Manual, 08/2021, A5E51132930B AA
103
• The mounting slots in the stator segment and rotor segment are dimensioned
according to DIN 508 as listed in the following table. The T-sliding block length
depends on the mounting situation. The T-sliding blocks must be at least as long as
the magnetically active length of the relevant rotor or stator segment.
Component acc. to DIN 508
Stator segment M12 x 18
Rotor segment M10 x 14
• Use the complete screw-in depth in the T-sliding block. The end of the screw must
not touch the base of the T-slot.
• Note the tightening torques specified in the table below.
• Tighten the fixing screws alternately for each segment. Use a calibrated torque
wrench with a short bit insert. You can increase the loadability of the screwed
connection by using angle or distance limit controlled tightening methods.
• Regularly check the screw tensioning force. Tighten the fixing screws using a
calibrated torque wrench.
Screw material and tightening torques
Table 5- 1 Required strength classes and tightening torques for the stator and rotor
Component Screw
(property class) *)
Tightening torque
M
A
in Nm
Stator segment M12 (8.8) 71 Nm
Rotor segment M10 (8.8) 41 Nm
*) You can also use screws with a higher property class, taking into account the associated
tightening torques.
Note
Friction value
For the contact surface of the screw head and the screw thread, the friction value µ
tot
=
0.1 is taken as a basis.
• For smaller friction values, you must reduce the tightening torque and for larger
friction values you must increase the tightening torque.
• Also note the maximum tightening torques of the screws used. These may be lower
than the values specified in the table above.