General Information
Removing Bearings
While bearing are normally removed
only when damaged, there may be
times when it is necessary to remove a
bearing that is in good condition.
However, improper bearing removal will
damage the bearing and possibly the
shaft or case.
Note the following when removing
bearings:
1.
When using a puller to remove a
bearing from a shaft, take care that
the shaft is not damaged. Always
place a piece of metal between the
end of the shaft and the puller screw.
See (Figure40).
2.
When using a hammer to remove a
bearing from a shaft. Do not strike
the hammer directly against the
shaft. Instead, use a brass or
aluminum rod between the hammer
and shaft (Figure 41) and make sure
to support both bearing races with
wooden blocks as shown.
3.
The ideal method of bearing removal
is with a hydraulic press. Note the
following when using a press.
Always support the inner and outer
bearing races with a suitable size
wooden or aluminum spacer (Figure
41).
If only the outer race is supported,
pressure applied against the balls or the
inner race will damage them.
Always make sure the press arm
(Figure 42) aligns with the center of the
shaft. If the arm is not centered, it may
damage the bearing or the shaft.
The moment the shaft is free of the
bearing, it drops to the floor. Secure or
hold the shaft to prevent it from falling.
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