一、Adapter sleeves are the most commonly used component when positioning bearings with tapered holes on cylindrical shafts, because this type of bushing can be used on smooth or stepped shafts. This bushing is easy to install and does not require additional fixing on the shaft. When using an adapter sleeve on a smooth shaft, the bearing can be positioned anywhere on the shaft. When used together with a stepped ring on a stepped shaft, the bearing can be accurately positioned axially, and it also facilitates the removal of the bearing.

二、Adapter sleeves and withdrawal sleeves are generally suitable for large bearings. The adapter sleeve is used to tighten the round nut and tighten the bearing, and the withdrawal sleeve is used in the opposite direction.

The original intention of the adapter sleeve and withdrawal sleeve is to facilitate the installation and disassembly of the bearing, improve efficiency and reduce the maintenance cost of the machinery. In layman's terms, for the convenience of installation, use the adapter sleeve, and for the convenience of disassembly, use the withdrawal sleeve. And the use of withdrawal sleeves and adapter sleeves can achieve the effect of adjusting the internal clearance.