Adapter and withdrawal sleeves are suitable for mounting bearings with a tapered bore on a cylindrical seat.

Adapter sleeves are used for mounting bearings with a tapered bore on a cylindrical seat and, since they allow the use of smooth shafts as well as shouldered shafts, they are the most frequently used mounting form. They are easy to mount and do not have to be additionally secured on the shaft by any additional means, which allows the bearings to be positioned at any point on smooth shafts.

The mounting set of an adapter sleeve consists of a steel sleeve (H), a locknut (HM / HMV / KM) and a tab washer (MB). In case of a larger dimension, retaining brackets (MS) are used instead of tab washers to prevent gradual loosening of the locknut.