There are two kinds of bearing Bushing and split type, and the integral bearing bushing is usually called the bushing. There are two kinds of integrated bearing with or without oil groove and oil groove. The bearing bush and the journal adopt a clearance match, and generally do not rotate with the shaft.
When the plain bearing is working, a thin oil film is required between the bearing bush and the rotating shaft to lubricate it. If the lubrication is poor, there is direct friction between the bearing and the shaft, and the friction will produce a very high temperature, although the bearing is made of special high-temperature alloy materials, but the high temperature generated by direct friction is still enough to burn it out. The bearing shell may also burn due to excessive load, high temperature, impurities in lubricating oil or abnormal viscosity and other factors. The sliding bearing was damaged after the tile was burned.