Established in 1998, China Xiaowei Bearing Co., Ltd. is a high-tech enterprise specializing in plain bearing, spherical plain bearing manufacturer and design many kinds of bearings. We have a modernized staffs of tech research and fog machine development, ISO9001 certificated, and manufacturing adopts advanced domestic and foreign standards such as GB, API, JIS, DIN, BS, NF and ANSI.

Plain Bearings come in two styles. Shafts under low stress like Camshafts and Rocker Arm Shafts, have no bearing shells and the shafts run right on the head metal, usually aluminum. If the parts are under a lot of stress, like Crankshafts mains and Rod big ends, there will usually be a special metal insert, called a Bushing or Bearing Shell, between the moving parts. The higher the stress the higher the oil pressure must be. Plain Bearings are very reliable as long as there is oil and oil pressure. If the oil pressure fails because of lack of oil or because the oil is old and thin, the moving metal parts will touch and start to wear. I have seen parts actually weld themselves together.
As long as you have good oil pressure and good oil, the Plain Bearing will last just about forever. I once read of an engine built for a sawmill in 1920s that was run continuously, 24 hours a day, 7 days a week up till the early 1970s. When the engine was taken apart they found they could see the original tool marks on the bearing shells. The wear on a plain bearing engine occurs when the engine is first started. On startup there is no oil flow or oil pressure so there is a minute amount of wear before the oil pressure comes up.

Characteristics: they can bear radial, axial load and their combined load, have big load capacity and characteristics of wear-resistance, wear-corrosion, self-aligning and self-lubricate.Series: radial spherical plain bearings, angular contact spherical plain bearings,spherical plain thrust bearings, rod ends, ball joint rod ends.
Spherical plain bearing is a kind of special structure bearing.Its build-up by a outer spthere of inner ring and a inner sphere of out ring.It can be submitted to high load.According to its different types and structures,it can be submitted by the radial load and axial load or both of them together.Due to the composite material on the outer sphere of inner ring,this kind of bearing can be maintenance-free.It work in low speed pendulum motion,and also can work in steeve motion at prescript angle.It still work when the shaft and shaft casing pore are at non-concentricity.