... bearings products include: miniature ball bearings,single row deep ball bearings,double row deep groove ball bearings,angular contact ball bearings,flange ball bearings,self-aligning ball bearings ... bearing, Z, ZZ, RS, 2RS,2RZBall bearings snap ring: N, NRTolerance codes: ABEC-1 ... V1Internal clearance codes: C2, C3, C4, C5Ball bearings material: AISI52100, AISI440C, AISI304, AISI316, ceramicRetainer: ...