DU DRY BEARINGS CYLINDRICAL BUSHES that is subjected to a sliding motion by a shaft and a bearing is called a sliding bearing. According to the principle of oil film formation on the two opposite moving surfaces of the sliding bearing,WB700 Bronze Bushing. Can be divided into fluid dynamic pressure lubrication bearings (also known as dynamic pressure bearings),JF bimetal plate strip and hydrostatic bearings (also known as hydrostatic bearings). Generally discussed is a hydrodynamically lubricated bearing that carries oil between two surfaces by relative movement of the shaft and the bearing to form a sufficient pressure film to separate the surfaces to withstand the load.