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1.3.1.1.5
Repair notes for ball and roller bearings
Fig. 31
Fig. 32
1.3.1.1.6
Feather keys and keyways
Fig. 33
General – Maintenance and repair
n
If one bearing of a pair of bearings shows defects, we highly
recommend the replacement of both bearings.
n
Remove any lubricant residues from the bearing to be exam-
ined by washing it with a suitable degreasing agent.
n
Check balls or rollers, running surfaces, outer faces of outer
races and inner faces of inner races for visible damage. If nec-
essary, replace the bearing.
n
Check the bearing for clearance and resistance between the
inner and outer races, replace if necessary.
n
Lubricate the bearing with the recommended type of grease
before assembly or reassembly.
n
On greased bearings (e.g. wheel bearings) fill the space
between the bearing and the outer seal with the recommended
type of grease before assembling the seal.
n
Check shaft and bearing housing for discolouration or other
signs of movement between bearing and seats.
n
Make sure that shaft and housing are free of burrs before
assembling the bearing.
n
Always mark the individual parts of separable bearings (e.g.
taper roller bearings) to enable correct reassembling. Never
assemble the rollers to an outer race that has already been
used, replace the complete bearing instead.
NOTICE!
When assembling the ball or roller bearing to the
shaft load must only be applied to the inner race
(1).
When fitting the bearing into the housing load must
only be applied to the outer race (2).
1.
Clean the feather key, examine it and only use it again if it
had not been damaged.
2.
Deburr and clean the edges of keyways thoroughly before
reassembling the feather key.
BW 226 BVC-5 / BW 226 DI-5
47
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