What's the difference between bearing, bush and bush

What's the difference between bearing, bush and bush

Bearing is an important part of contemporary mechanical equipment.Its main function is to support the mechanical rotating body, reduce its friction coefficient in the process of movement, and ensure its rotary accuracy.Bearings can be divided into rolling bearings and sliding bearings according to the different friction properties of moving elements.Among them, rolling bearing has been standardized and serialized, but compared with sliding bearing, it has larger radial size, vibration and noise, and higher price.

Bushing gasket ring bushing in valve applications, bushing in the bonnet, the general use of ptfe or graphite and other corrosion resistant materials for sealing.

The shaft sleeve is a tubular mechanical part that is sheathed on the rotating shaft and is an integral part of the sliding bearing.Generally speaking, the shaft sleeve and bearing block adopt interference fit, and adopt clearance fit with the shaft