HEIDENHAIN TNC 410 M Technical Manual page 627

7.12.8 QSY 190
Combined load on
QSY 190
Axial forces
April 2007
It is necessary to determine the combined load resulting from axial and radial
forces for the HEIDENHAIN synchronous motors QSY 190.
Use the diagram showing the radial forces to determine the permissible
radial force F depending on the distance z and the average speed.
R
Use the diagram for axial forces to determine the equivalent axial force F
depending on the applied axial force F
must not exceed 1500 N.
Calculate the combined load F
the equivalent axial force F
( ⋅
0,56
F = F
com R
The following conditions must be fulfilled in order to achieve a bearing
service life of 30 000 h:
• The applied axial force F
• The applied radial force F
F from the diagram for radial forces.
R
• The combined load F
from the diagram for radial forces.
Permissible Forces on the Motor Shaft
, where the applied axial force F
A
from the permissible radial force F
com
:
A2
)
+ F
A2
must not exceed 1500 N.
A
must not exceed the permissible radial force
Ra
must not exceed the permissible radial force F
com
A2
A
and
R
R
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