Siemens SINAMICS S210 Operating Instructions Manual page 291

All radial forces always refer to aligned forces.
NOTICE
Motor damage caused by circulating forces
Circulating forces can cause bearing motion, and therefore damage the motor.
● Circulating forces are not permissible.
F
R
x
Figure 10-4
Point of application of radial forces F
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 1FK2x02
SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC
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 DE (A side)
10.1 Technical data and properties of the motor
at the shaft extension
R
Technical specifications
289