Silver Round Needle Roller Bearings Inner Ring, For Industrial, Packaging Type : Carton Box

Inner Rings are heat-treated and finished by grinding to a high degree of accuracy and are used for Needle Roller Bearings. In the case of Needle Roller Bearings. normally the shafts are heat-treated and finished by grinding and used as raceway surfaces. However, when it is impossible to make shaft surfaces according to the specified surface hardness or surface roughness, Inner Rings are used .