Page 181 - Rollingbearings

Provisions for mounting and dismounting
Radially free Raceways on

mounted bearings shafts and in

for axial load housings

You may want to use individual bearings in a In order to save space, the rolling elements
bearing arrangement to separately accom- of cylindrical, needle or tapered roller bear-
modate the radial and axial component of ings can run directly on raceways on the
the load A typical arrangement is to use a shaft and/or in the housing To fully exploit
cylindrical roller bearing and a four-point the load carrying capacity, the raceways
contact ball bearing (ig. 22) should comply with certain requirements,
When using an individual bearing to including:
accommodate the axial load, you should
ensure that this bearing is not subjected to • suitable material properties such as
unintended radial loads by: cleanliness, hardness and heat treatment
• suitable roughness and surface texture
• designing the bore diameter of its housing • adequate tolerances for proile, roundness
to be approximately 1 mm larger than the and total run-out
bearing outer diameter
• not clamping its outer ring in the axial For additional information, contact the SKF
direction to permit its free radial positioning application engineering service

Also consider the use of an anti-rotation pin
The designation sufix N2 indicates that the
bearing has two locating slots in the outer
ring

Bearing interfaces
Fig. 17 Fig. 19 Fig. 21
Bearing on a tapered seat, supported by a Bearing on an adapter sleeve, positioned Spacing collar designed not to contact the
lock nut by a distance ring shaft illet

B.6

Fig. 18 Fig. 20 Fig. 22
Bearing on an adapter sleeve Bearing on a withdrawal sleeve Cylindrical roller bearing for radial load
and four-point contact ball bearing for
axial load

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