Based on the side face configuration, the angular contact
ball bearings for paired mounting can be divided into three
groups:
1.Back-to-back arrangement:
2.face-to-face arrangement:
3.Tandem arrangement:
These bearings can carry the combination of axial load an
dradial load . they can also carry the pure radial load only.
Except the tandem arrangement, all the other arrangements
can carry axial loads in double directions. Normally , the
manufacturer shall choose the arrangements for the rings a
nd the balls are in the conditions of carrying axial pre-load ,
therefore improving the capacity and rigidity of the whole
arrangement as one bearing unit.