Air bearing refers to the bearing that supports the load by means of the pressure air film formed between the surfaces of the sliding pair of bearings, which is completely separated by the air film when working. Air bearing belongs to the fluid sliding bearing in the sliding bearing, working for fluid lubrication, its lubrication medium is air.

 

 

 

According to the formation mechanism of pressure air film, air bearings are mainly divided into two categories: aerodynamic bearings and aerostatic bearings.

 

 

 

The pressure air film of the air dynamic bearing is formed by bringing air into the convergence area between the surfaces of the sliding pair through the mutual movement of the sliding pair, and the air film is roughly wedge-shaped