2012 deep groove ball bearings nsk 6000 1)competitive price and good quality 2) ... Performance High Quality Deep Groove Ball Bearing Nsk 6000 1:No.1: Bearings ouchuan can supply you: ... 1).6000 Series: 606,607,608,609,6000,6001,6002,6003,6004 --- Open, ZZ ... --- Open, ZZ(Steel Shields), 2RS, UG, 2RZ; 3).6300 Series: 6300,6301,6302 --- Open, ZZ(Steel Shields), 2RS, UG, 2RZ ...