The shaft sleeve is a part of the sliding bearing, which is a cylindrical mechanical part sleeved on the rotating shaft. Generally speaking, the shaft sleeve and the bearing seat adopt an interference fit, and the shaft sleeve and the shaft adopt a clearance fit. The difference between sliding bearings and ordinary bearings is that there are no rolling elements such as balls in the sliding bearings. Lubricating oil is usually injected to create an oil seal between the shaft and the sleeve, thereby reducing the wear between the shaft and the sleeve.
The shaft sleeve is mainly designed to reduce the friction and wear of the shaft during the work process in the fields of auto parts, mechanical equipment, electrical and electronic industries. Its basic purpose is basically the same as that of the bearing, but the cost is relatively high. Inexpensive, because the frictional resistance is large, it can only be used on some parts.