Radial And Axial Forces; Axial Forces; Radial Forces - Siemens SIMOTICS S-1FK2 Series Configuration Manual

Mechanical properties

3.6 Radial and axial forces

3.6 Radial and axial forces
3.6.1

Axial forces

When using, for example, helical toothed wheels as drive element, in addition to the radial
force, there is also an axial force on the motor bearings.
The following axial forces on the shaft extension are permitted.
The specified axial forces are determined by the spring loading and therefore also apply to motors
with holding brake.
Note
Applications with an angular toothed pinion directly on the motor shaft are not permitted in
case the permissible axial forces are exceeded.
3.6.2

Radial forces

As a result of the bearing arrangement, 1FK2 is designed for aligned forces. Forces such as
these occur for belt drives, for example.
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.
32
Motor
1FK2❑03
1FK2❑04
1FK2❑05
1FK2❑06
1FK2❑08
1FK2210
Static axial forces in N
75
100
120
200
300
450
1FK2 synchronous motors for SINAMICS S120
Configuration Manual, 06/2019, A5E46927724B AB