Page 73 - Rollingbearings

Arrangements and their bearing types
Bearing combinations for the where an interference it is required for
locating support both rings

The locating bearing support can consist of a 2 Use a loose it between one bearing ring
combination of bearings For example and its seat Suitable bearing types
(ig. 2): include:
– deep groove ball bearings (page 240)
• To accommodate the radial load, a cylin­ – self­aligning ball bearings (page 438)
drical roller bearing that has one ring – spherical roller bearings (page 774)
without langes may be used – pairs of angular contact ball bearings
• To provide the axial location, a deep (page 385) or tapered roller bearings
groove ball bearing, a four­point contact (page 670)
ball bearing, or a pair of angular contact Axial movements of a bearing on its seat
ball bearings may be used cause axial loads, which might have an
impact on the bearing service life
The outer ring of the axial locating bearing
must be mounted radially free and should When using other bearing types, you may
not be clamped Otherwise, this bearing can need to take additional design considerations
be subjected to unintended radial loads into account

Bearings for the non-
locating support

There are two ways to accommodate axial
displacements at the non­locating bearing
support:

1 Use a bearing type that enables axial dis­
placement within the bearing (ig. 3): Bearing type and arrangement
– cylindrical roller bearings with langes
on one ring only (page 494)
– needle roller bearings (page 582)
– CARB toroidal roller bearings
(page 842)
When these bearings are rotating, they
accommodate axial displacement and
induce almost no axial load on the bearing B.2
arrangement You should use this solution

Fig. 3
Bearings that accommodate axial displacement

Cylindrical roller bearings Needle roller CARB toroidal
(NU and N design) bearing roller bearing

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