deep groove ball bearing professional bearing manufacture. high precision,best quality,competitive price. Our company is a bearing manufacture,If you don't find a bearing that ... Type: open,Z,ZZ,RZ,2RZ,RS,2RSSerise: 6800,6900,6000,6200,6300,618,628,bearing series,etcFeatures: hingh precision,long life ... ABEC-3(P6)Noise level: EMQ V1 Z2,EMQ V2 Z3,EMQ V3 Z4,EMQ V4Application: Home appliance,low noise and ...