Plain Bearings and Sleeve Bearings

Plain bearings and sleeve bearings (also referred to as bushings or journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. They function via a sliding action instead of the rolling action used by ball, roller, and needle bearings. Plain bearings and sleeve bearings are made from a variety of materials and are often self-lubricating to provide smooth operation and greater durability. Hydrostatic, hydrodynamic, and fluid film bearings are plain bearings and sleeve bearings that rely on a film of oil or air to create a clearance between the moving and stationary elements. Some products are designed for extreme environments and can withstand high or low temperatures. Others are suitable for hazardous environments with high levels of shock and vibration. Applications for plain bearings and sleeve bearings include food processing machinery, home appliances, packaging equipment, office machines, and automotive equipment.

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