This is copper or aluminum or plastice bastics based material, on which the rollers are aranged oderly in certain angle and intervals. Moreover, the retaining technique is improved that dropping of the rollers can be thoroughly prevented.
This is a young generation of the roller bearing which can roll in high speed, and is used in rolling frane of cold impact moulds, high precision machine tools and so on.

Max Load Capacity 30N/mm
Shrink Fit 0.01mm~0.02mm
Temperature Range 6m/s
Friction Coef 0.01~0.08
Concen Tric Degree <0.002mm