... SeriesMaterialChrome steelCage MaterialBrass,Ductile Iron,Solid steel,Steel,Carbon steel,Copper,Nylon,etc.ID Size4-300mmCertificationISO9002, ... Groove Ball Bearings,Angular Contact Ball Bearings,Thrust Ball Bearings,Self-aligning Ball Bearings, ... .Special Bearings BrandSKF bearing, FAG bearing, KOYO bearing, NSK bearing, NTN bearing, INA bearing, TIMKEN bearing, ZWZ bearing, HRB bearingTel0086-531 ...