Page 131 - The Tribology Handbook

A22 Rolling bearing installation

Fixing methods
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TvDe of fixino Description
Shaft-screwed nut provides positive c!amping for the bearing inner
ring
Housing-the end cover should be spigoted in the housing bore, not
on the bearing o.d., and bolted up uniformly to positively clamp
the bearing outer ring squarely

Circlip location can reduce cost and assembly time. Shaft-use a
spacer if necessary to provide a suitable abutment. Circlips
should not be used if heavy axial loads are to be taken or if positive
clamping is required (e.g. paired angular contact unit). Housing
shows mounting for snap ring type of bearing

Interference fit rings are sometimes used as a cheap and effective
method of locating a bearing ring axially. The degree of inter-
ference must be sufficient to avoid movement under the axial
loads that apply. Where cross-location is employed, the bearing
seating interference may give sufficient axial location

Bearing with tapered clamping sleeve. This provides a means for
locking a bearing to a parallel shaft. The split tapered sleeve con-
tracts on to the shaft when it is drawn through the mating taper
in the bearing bore by rotation of the screwed locking nut

Fig. 22.6. Methods of fixing bearing rings
A22.7