... Steady Quality 606,607,608.6000,6001.600 Deep groove ball bearingManufacturer of Deep Groove Ball Bearings in Cixi, Zhejiang, China..Tolerance: ABEC ... , 6003, 6004, 6005, 6006, 6007. 6008, 6009, 6010;6200 Series:625, 626, 627, 628, 629, 6200, 6201, 6202, 6203, 6204, 6205 ... , 6310;Production Ability: 5,000,000PCS/Month; 6000ZZ deep groove ball bearing