Classification of Air Bearings -source of pressurization of the gas film

Classification of Air Bearings based on source of pressurization of the gas film providing the load-carrying capacity

 

Aerostatic bearings - the gas is externally-pressurized 

Aerodynamic bearings- the gas is pressurized by the relative velocity between the static and moving surfaces in the bearing

Hybrid bearings- the bearing is fed with externally-compressed gas at low speed and then relies partially or entirely on the self-pressurizing effect at higher speeds.

Porous Media Aerostatic Bearing-Gas flow is controlled through porous material

Micro-Nozzle Aerostatic Bearing-Gas flow is controlled through micro-sized holes

Orifice Type Aerostatic Bearing-Gas flow is controlled through holes and grooves

Air caster Aerostatic Bearing-Gas flow is controlled through an air bag

Foil bearing-Bearing surface is flexible, allowing large displacement and providing a good stability.