High radial loads occur
High axial loads act on one side
Combined loads must be supported (radial and axial forces acting simultaneously)
Precise axial guidance of the shaft is required (locating bearing function)
The bearing arrangement must have very high axial rigidity
The bearing position is operated clearance-free or under preload (single bearings are adjusted against each other)
High running accuracy is required
The load carrying capacity of angular contact ball bearings is no longer sufficient and the higher speed suitability of angular contact ball bearings is not required
The bearings are not required to compensate misalignments
The design objective comprises compact, rigid and economical bearing arrangements with a high load carrying capacity