A plain bearing Plastic bearingis a simple mechanism consisting of two sliding components。 This lightweight， compact and inexpensive bearing is widely used in many types of equipment and is sometimes referred to as a Babbitt， bushing， or journal bearing。 A plain bearing can be used for three basic types of motion: linear， thrust， and journal。 The basic types of plain bearings are bushing， integral or two-piece。 The bearings may be composed of many types of materials。
