Ball Bearing, Deep Groove Ball Bearing, Angular Contact Ball Bearing manufacturer / supplier in China, offering Vacuum Pump Bearing C211hy7 Scb1000y13 CB211 55*100*21 for Dry Ih1800/Ih600, Hxb Vacuum Pump Bearing CB211 Vcmp211 55*100*21mm for Turbomolecular Pump, Super Precision Bearing CB209-Z C209sy10 36.5*85*19mm Special Bearing for Vacuum Pump Bearing and so on.