Description: Material - The bearing sleeves are made of POM material, also known as plain bearings or bushings. They are self-lubricating and maintenance-free, and their good load-bearing capacity and wear resistance ensure durability and mechanically stable operation. Support Function - The nylon bushings provide a reinforced housing for shafts or fasteners, enhancing stability and support without damaging or jamming the shaft. They also help to reduce the bore size or replace worn original bushings. Self-lubricating Performance - The sleeve bearings have good self-lubricating properties, reducing the need for external lubricants. They are suitable for lubricating applications with materials that have rotary motion and self-lubricating properties. Wide Application - The POM sleeve bearings are mainly used in linear applications to guide or reduce friction. They are widely used in various types of industrial equipment, such as electrical devices, household appliances, printing machinery, and machine tools. Specification: Color: Black Material: POM Sleeves Size: 12 x 14 x 15 mm / 0.47 x 0.55 x 0.59 Inch (ID x OD x L) Package Content: 8Pcs x Sleeve Bearing