This SKF withdrawal sleeve is used to locate a rolling element bearing with a tapered bore on a cylindrical shaft, and is used with ball and roller bearings. It is made of carbon steel for strength and resistance to wear and coated with zinc phosphate for corrosion resistance. Sleeves having a bore diameter of 200 mm and above are supplied with two oil-supply ducts at the threaded side and have distribution grooves around the circumference and in the axial direction on the outside surface as well as in the bore. This withdrawal sleeve, along with lock nut and lock washer (sold separately), is an accessory for use with rolling bearings and is used in various applications, such as automotive and truck transmissions, agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.Plain bearings provide low-friction sliding contact for relative motion between parts of a machine. They are the simplest type of bearing, with no rolling elements, and there are three basic types of plain bearings: radial plain bearings (also called sleeve bearings or bushings) to support rotating or reciprocating shafts, thrust bearings (also called washers) to support axial loads on shafts, and linear bearings to support and guide the motion of parts in a straight line. Flanged sleeve bearings have a flange on one end to support axial loads. Spherical plain bearings are radial bearings that allow for angular misalignment of the shaft. Plain bearings are made from durable, low-friction materials such as sintered or cast bronze alloys, plastic, or a combination of a metal shell and a plastic bearing surface. They can be lubricated externally or by a lubricant embedded in the bearing material. Plain bearings are used in automobiles, construction and mining equipment, textile manufacturing equipment, and robotics, among others.SKF manufactures bearings, seals, and lubrication systems for automotive, OEM, energy, and other industrial applications. The company, founded in 1907, is headquartered in Gothenburg, Sweden, and meets International Organization for Standardization (ISO)/TS 16949, ISO 14001, and ISO 9001 standards for quality assurance.