Siemens SIMOTICS S-1FK2 Configuration Manual page 45

Point of application of radial forces F
F
R
x
Figure 3-1
The following diagrams indicate the maximum permissible radial force for the corresponding
motor frame size. It depends on the force application point and the average speed for a nominal
bearing service life (L10h) of 25000 h.
Radial force diagram 1F☐2☐03
Figure 3-2
1FK2 Synchronous Motors for SINAMICS S120
Configuration Manual, 02/2022, A5E46927724B AD
Point of application of the radial force
Distance between where the radial force is applied and the shaft shoulder in mm
Force application point at the shaft extension
Maximum permissible radial force F
bearing lifetime of 25000 h.
at the shaft extension
R
at a distance x from the shaft shoulder for a nominal
R
Mechanical properties
3.6 Radial and axial forces
43