There are two types of bearing bushes: integral and split.

The bearing bush is the part of the sliding bearing and the journal. The shape is a tile-shaped semi-cylindrical surface. It is very smooth. It is usually made of wear-resistant materials such as bronze and friction reducing alloy. In special cases, wood, engineering plastic or rubber can be used. production.

There are two types of bearing bushes: integral and split. The integral bearing bush is usually called the bushing. The integral bearing bush has two types of oil grooves and oil grooves. The bearing bush and the journal have a clearance fit and generally do not rotate with the shaft.

When the sliding bearing is working, a thin oil film is required between the bearing bush and the rotating shaft to lubricate. If the lubrication is poor, there is direct friction between the bearing bush and the rotating shaft. The friction will produce a very high temperature. Although the bearing bush is made of a special high temperature resistant alloy material, the high temperature generated by direct friction is still enough to burn it. The bearing bush may also be burnt due to excessive load, high temperature, impurities in the lubricating oil or abnormal viscosity. The sliding bearing is damaged after burning the tile.