Rolling structure

Common Rolling generally consists of two rings (ie, inner, outer), the basic element rolling elements and cage and other components. Usually the inner ring and the journal mate and rotate with the shaft, the outer ring mounted in a rack of the high speed bearing hole stationary. When the inner and outer ring relative rotation, rolling into account, the outer ring raceway, the rolling body cage uniform distribution and to avoid contact between the adjacent rolling elements and friction, and wear.
Inner and outer rings and rolling elements of rolling bearings generally use a dedicated rolling bearing steel, such as GCr9, GCr15, GCr15SiMn etc. retainer is used softer materials such as carbon steel plate by stamping, or copper alloy, plastic and other system to make.