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Checking the bearing seats
on the shaft
Checking the requirement
for horizontal location
Load angle range within
which horizontal location
of the housing is necessary
Load directions
in plummer block housing SES
Schaeffler Technologies
The bearing seats on the shaft must be free from impact marks
and burrs and must have adequate dimensional and geometrical
accuracy.
The requirements for dimensional and geometrical accuracy
of the bearing seats for a tapered bearing bore and location by
adapter sleeve are as follows:
■
diameter in tolerance class h9
■
cylindricity tolerance within IT5/2
The requirements for dimensional and geometrical accuracy of
the bearing seats for a cylindrical bearing bore and direct seating of
the bearing on the shaft are dependent on the operating conditions.
They are generally defined for the specific application by the
designer.
In addition to the foot screws, horizontal location of the housing is
necessary if one of the following conditions is fulfilled:
■
The load angle is between 55° and 120°, Figure 4.
■
An axial load is present.
The designer of the machine or equipment should check whether
horizontal location of the housing is necessary.
Horizontal location can be achieved by means of pins or preferably
stops in the load direction.
Figure 4
F
180
F
120
1
F
55
F
0
MON 92
9
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