AIR FOIL BEARING 

AIR SUSPENSION BEARING DESCRIPTION 

Before starting the air-suspension bearing, there is physical contact between the journal and the bearing. When starting, the shaft and the bearing move relative to each other. There is a metal sheet between the radial bearing sleeve and the shaft. When the shaft rotates, the gas is driven to flow to generate gas tension, which causes the metal sheet to open and separate from the shaft. An air film of about 2mm is formed between the shaft and the metal sheet. A complete air film is formed under the aerodynamic effect by utilizing the adsorb-ability and compressibility of gas (diffusivity, viscosity and heat conductivity). In this case, the radial bearing supports the rotating shaft with a gas film pressure field.

Air bearing technology: National Aeronautics and Space Administration (NASA) of the United States, air bearing technology has been in normal use on Boeing aircraft of the United States for more than 20 years, and the technology is very mature.

AIR FOIL BEARING STRUCTURE 

AIR FOIL BEARING PRINCIPAL

AIR FOIL BEARING DEVELOPMENT HISTORY