In single row angular contact ball bearings, the raceways are arranged so that the forces are transmitted from one raceway to the other under a certain contact angle.
With increasing contact angle, the axial load carrying capacity also increases. Due to the large contact angle, single row angular contact ball bearings are thus suitable to support higher axial forces acting in one direction.
They can support radial loads and unilateral axial loads and are adjusted against a second bearing that provides counterguidance.
These correspond in their design to a pair of single row angular contact ball bearings in an O arrangement. These bearings can support high radial forces and axial forces in both directions.