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Pellerin Milnor Corporation
3. Once the bearing housing is free of the shell, carefully slide it off of the guide rods and place
on a clean work surface.
4. The seal sleeve will almost always remain on the shaft when the housing is removed. Remove
the seal sleeve taking care not to damage or scar it and place it on a clean work surface.
Precautions for Bearing Replacement
BNWVUM02.C02 0000278703 A.3 A.5 A.4 3/16/20 8:35 AM Released
The most important ingredient in successful bearing and seal installation is cleanliness. The bear-
ing housing must be free of all foreign matter. The grease and leak off passages must be blown
clear and all foreign matter removed. You must have a clean work area. Keep your hands and
tools free from grit and grime. Wash your hands before starting and as required during these pro-
cedures. Foreign matter is, without doubt, the most frequent cause of bearing failure, and one
over which the manufacturer has no control.
Where cleaning is required, bearings, bearing housings and seal sleeves may be cleaned with the
following solvents or cleaning agents (in strict accordance with the manufacturer’s recommenda-
tions as such substances are generally toxic and/or explosive under certain conditions):
Benzene
Gasoline Naptha
Chlorethane
Kerosene
Tricholorethylene
Freons
Mineral Spirts
Do not, however, expose any components to the above substances for more than 24 hours and on-
ly use at room temperature. Never use the following solvents or cleaning agents: alcohols, cre-
sols, phenols, flouro propanols, or other similar chemicals or mixtures.
NOTE: Hammer blows, overheating, or improper use of force can damage precision
parts.
Replacing the Bearing Housing, Seal Sleeve, and Seals (Front
or Rear)
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1. With the seal sleeve removed, press all old seals out of the bearing housing. Remove the large
o-ring from the outside of the housing. Thoroughly clean the bearing housing and flush out
all grease passages to make certain they are unblocked. Remove the o-rings from the inside of
the seal sleeve and clean the seal sleeve.
2. While the bearing housing is disassembled, charge all grease passages with grease. This will
assure that there are no blockages.
3. Replace the o-rings in the seal sleeve and the large o-ring on the outside of the bearing hous-
ing. Replace with new o-rings if the old ones are worn.
4. Press new seals into the bearing housing. You may gently work the seals in with a mallet and
metal drift as shown in Figure 22 .
Bearing Assemblies
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