Mechanical properties
3.6 Radial and axial forces
1FK2 synchronous motors for SINAMICS S120
Configuration Manual, 06/2019, A5E46927724B AB
33
Point of application of the radial force at the shaft extension
Distance between where the radial force is applied and the flange in mm
Figure 3-1 Force application point at the DE (A side)
The following diagrams indicate the maximum permissible radial force for the corresponding
motor shaft height. It depends on the force application point and the average speed. It is
given for a nominal bearing service life (L10h) of 25000 h.
Radial force diagram 1FK2x03
Figure 3-2 Maximum permissible radial force
F
R
at a distance x from the flange for a nominal
bearing lifetime of 25000 h