Siemens SIMOTICS S-1FK7 - Page 59

Mounting
4.3 Mounting instructions
1FK7 G2 synchronous motors
Operating Instructions, 05/2021, A5E50907562B AA
57
Tightening torques for fastening bolts
The general tolerance for the tightening torque is 10%. The tightening torque is based on a
friction coefficient of μ = 0.14.
Motor Screw DIN 7984 Washer ISO 7092
[mm]
Tightening torque for screws (not for
electrical connections)
1FK703☐
M6
6 (d2 = 11)
8 Nm
1FK704☐
M6
6 (d2 = 11)
8 Nm
1FK706☐
M8
8 (d2 = 15)
20 Nm
1FK708☐
M10
10 (d2 = 18)
35 Nm
1FK710☐
M12
12 (d2 = 20)
60 Nm
Tightening torques for fastening bolts
The mounting tools to be used are a torque wrench or pneumatic or impact power
screwdriver with automatic switch-off.