The adapter sleeve and withdrawal sleeve are generally suitable for large bearings. The adapter sleeve is used to adapter the round nut and adapter the bearing, while the reverse is used for removing the sleeve.

The original intention of adapter and withdrawal sleeves is to facilitate the installation and disassembly of bearings, improve efficiency, and reduce the maintenance cost of machinery. Simply put, it means using adapter sleeve for easy installation and withdrawal sleeve for easy disassembly. And the use of both the withdrawal sleeve and the adapter sleeve can achieve the effect of adjusting the internal clearance.

The adapter sleeve is convenient for adjusting the axial positioning of the bearing and has good self-locking performance. The use of an optical shaft avoids the stress concentration phenomenon of a stepped shaft, which is beneficial for heavy-duty transmission or use in situations with impact vibration.

Although the structure of this type of bearing device is simple, it can only achieve satisfactory results under the premise of correct installation and maintenance. Otherwise, it will lead to a lack of speed and even backfire.