The bearings are held together in handling and transport by a transport and mounting retaining device on the outer ring. This retaining device remains in the bearing and must not be subjected to axial load.
The outer ring without ribs can be axially displaced in both directions in relation to the inner ring. The inner ring has ribs on both sides.
Oil or grease lubrication is possible. For lubrication, the outer ring has a lubrication groove and lubrication holes.

