brass bushing is a modern machinery and equipment is an important component. Its main function is to support the mechanical rotating body, reducing the coefficient of friction during exercise, and to ensure the accuracy of its rotation. Friction of moving parts of a different nature, the Oilless Dry Bushings can be divided into two major categories of rolling bearings and plain bearings. Wherein Rolling been standardized, serialized, but compared with its radial dimension sliding bearing, vibration and noise is large, the price is higher. Rolling generally consists of an outer ring, inner ring, rolling elements and cage four parts. According to the shape of the rolling element, <AHREF="HTTP: ? www.slidingbearings.com>flange bearing into ball bearings and roller bearings two categories. For the basic dynamic load rating, radial bearings refers to pure radial load, thrust ball bearings refers to pure axial load, radial thrust TWP TWPT oilless bronze plate, 10mm thickness wear pad means to produce pure radial displacement obtained radial component.