Selection Tips; Radial Load, Axial Load - Bosch Rexroth MAD Project Planning Manual

MAD / MAF Asynchronous Housing Motors
9.13.2

Selection tips

9.13.3

Radial load, axial load

Determine bearing load
Observe
- radial force F
r
- axial force F
a
- mean speed n
- period of use of motor
Select
bearing type
Observe diagram
"shaft load" in "Technical
Specifications".
Select
bearing type
Observe diagram
"grease life" in "Technical
Specifications".
t < 30000 h
f
Grease life longer
than the period of use
of the motor?
NO
Get advice from Bosch
Rexroth. Please contact our
sales dep artment and
forward application details.
Fig. 9-14: Bearing selection flow diagram
During operation, both radial and axial act on the motor shaft and therefore
on the bearings as well. The machine construction and the motor type have
to be carefully coordinated to ensure that the specified load limits will not be
exceeded.
, distance x
m
t > 30000 h
f
YES
Include selected bearing
variant according to type
code in the order name.
Set additional options
R911295781_Edition 11 Bosch Rexroth AG
215/265
Application notes