Mounting
5.5 Mounting the drive elements
SIMOTICS S-1FT2 synchronous motors for SINAMICS S120
Operating Instructions, 07/2021, A5E50610821B AB
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5.5
Mounting the drive elements
NOTICE
Damage to the motor due to runout on the shaft extension
Runout and thrust on the shaft extension of the motor can damage to the motor.
•
Mount the motor without knocking it or exerting force on the shaft extension.
Description of functions
Assemble the drive elements in such a way as to minimize the stress on shafts and bearings
from transverse forces.
Optimum
Unfavorable
low stress on shafts and bearings
high stress on shafts and bearings
Mount or remove the drive elements (for example, couplings, gear wheels, belt pulleys) using
suitable devices only (see figure).
•
Use the threaded hole in the shaft extension.
•
If required, heat up the drive elements before mounting or removing.
•
When removing the drive elements, use an intermediate disk to protect the centering in
the shaft extension.
•
If necessary, completely balance the motor together with the drive elements according to
ISO 1940.
Note
Motors with feather key are half-key balanced. The motors have been balanced with half a
feather key.
