Installation 
  5.2 Attaching transmission elements 
Synchronous Motors 1FK7 
Operating Instructions, 03/2011, 610.40700.40c 
25 
5.2  Attaching transmission elements 
 
NOTICE 
 
Do not subject the motor's shaft and bearings to impact. Do not exceed the permissible 
axial and radial forces at the shaft extension, as defined in the configuration specifications. 
Axial forces are not permitted for motors with an integrated holding brake. 
 
Suitable equipment (see figure) must be used when fitting and removing transmission 
elements (e.g. coupling, gear wheel, belt pulley). 
●  Use a threaded hole in the shaft extension. 
●  If necessary, heat up the transmission elements. 
●  When removing transmission elements, use an intermediate disk or washer to protect the 
centering in the shaft extension. 
●  If necessary, fully balance the motor with transmission elements in accordance with ISO 
1940. 
 
Figure 5-1  Fitting/removing transmission elements; A = intermediate disk/washer (to protect the 
centering in the shaft extension) 
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