There are many kinds of sliding bearings. 1 According to the direction of the load can be divided into radial (centre) sliding bearings and thrust (axial) sliding bearings in two categories.
2 According to the type of lubricant can be divided into oil-lubricated bearings, grease-lubricated bearings, water-lubricated bearings, gas bearings, solid-lubricated bearings, magnetic fluid bearings and electromagnetic bearings 7 categories.
3 According to the thickness of the lubricating film can be divided into two types of film lubrication bearings and thick film lubrication bearings.
4 According to the bearing material can be divided into bronze bearings, cast iron bearings, plastic bearings, jewel bearings, powder metallurgy bearings, self-lubricating bearings and oil-bearing bearings.
5 according to the bearing structure can be divided into round bearings, oval bearings, three oil leaf bearings, step surface bearings, tilting pad bearings and foil bearings.