5.2.2 Mounting instructions for the motor
NOTICE
Damage to shaft sealing rings caused by solvent
If shaft sealing rings come into contact with solvents when removing the corrosion protection,
the shaft sealing rings can be damaged.
● Avoid contact between solvents and shaft sealing rings.
NOTICE
Damage to the motor due to runout on the shaft extension
Runout and thrust on the shaft extension of the motor damage the motor.
● Mount the motor without runout and thrust on the shaft extension.
● Observe the specifications on the rating plate.
● Observe the warning and information plates on the motor.
● Remove the anti-corrosion protection thoroughly from the motor shaft. Use commercially
available solvents.
● Please pay attention to the notes on the thermal mounting variants.
● If the motor is installed vertically with the shaft extension facing up, ensure that no liquid
can enter the upper bearing.
● Ensure that the flange is in even contact with the mounting surface.
● Use hexagon socket head cap screws with a property class of at least 8.8.
● When tightening the fastening bolts avoid any uneven stressing.
● Observe the tightening torques for the fastening bolts.
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 Bolt DIN 7984 Washer ISO 7092
[mm]
Tightening torque for bolts (not for electri‐
cal connections)
1FK2☐02 M4 4 (d2 = 8) 2.2 Nm
1FK2☐03 M5 5 (d2 = 9) 4 Nm
1FK2☐04 M6 6 (d2 = 11) 8 Nm
Tightening torques for fastening bolts
Installing
5.2 Installing the motor
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA 85
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