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DLCGEEP-124-I/000, Approved, 2016-11-11, CampinasDM
NOTE: On motors with accessible or split end
shields, it is not necessary to remove the upper-half end
shield from the lower-half end shield.
Bearings may be recommended for cleaning or
replacement by using the following procedure:
1. Remove the hex head bolts (3) holding the
inner bearing cap (12).
2. Remove the hex head bolts (1) holding the
end shields (2 and 13) to the frame.
3. Remove the end shields.
NOTE: On motors with an outboard slinger (8),
it is necessary to remove the slinger before removing the
end shield.
4. Remove the bearing lock-nut assembly (9).
5. Remove the bearing (10 by using a puller or
by tapping against the bearing cap 12).
Bearing Reassembly
Cleanliness is important when working with
bearings. Before reassembling a bearing, all bearing and
machined surfaces should be thoroughly cleaned with a
suitable solvent. Examine the machined lifts of the end
shield, cartridge, slinger, and grease cap for burrs. It is
important that these surfaces be smooth.
26
GE Industrial Control Systems GEEP-124-I
GEEP-124-I Horizontal Induction Motor
Reassembly of the bearing should be performed in
the following manner:
1. Inspect the bearing housing and related parts
for foreign material. Clean if necessary.
2. The machined fits and critical surfaces of the
end shield, bearing housing, bearing cap and bearings
should be free of all nicks, scratches or burrs. If any
polishing is done, care should be taken to avoid a deposit
of metal dust in and around the bearing assembly.
3. The internal surface of the bearing housing
should be coated with a thin film of the recommended
grease. The shaft and the shaft fit of the grease housing
and grease cap should also receive a very light coating of
the recommended grease. These precautions, although
not absolutely essential, will guard against corrosion of
the critical surfaces.
4. Heat the bearing in oil to a temperature
between 50 C and 125 C (122 F to 257 F) and place it on
the shaft. Hold it against the shaft shoulder until the
bearing cools.
5. Replace the bearing nut and washer.
6. Procure a stud, 8 inches long, threaded on
one end (3/8-16 thread). Screw the stud into one of the
holes in the inner bearing cap to facilitate lining up the
bearing-cap holes with the holes in the end shield.
7. All subsequent reassembly steps will be a
reversal of the disassembly procedure.
Copyright 1997,1998 The General Electric Company, USA
WPI, Antifriction Bearing
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