... have been specialized in OEM service since 2008. Choose Ruiboshi Bearing, you will enjoy reliable source of goods with competitive ... always welcome any inquiry from you.Sincerely yours,Nanjing Ruiboshi Bearing Co., Ltd. 1.deep groove ball bearing6000series6000,6001,6002 ... 6412,6413,6414,6415,6416,6417,6418,6419,6420,etcThin-section deep groove ball bearings6700ZZS,6800ZZ,63800ZZ,6900ZZ,6701ZZS,6801ZZ, ...