... :2008 HYIB Low Noise Deep Groove Ball Bearings 6313 2RS1. Bearing Material:chrome steel2. ISO9001:2008 certificate3. BearinSg OEM service4. ZV2 ... ) Variant structure61800 10-320 Z,ZZ,RS, 2RS 61900 10-280 Z, ZZ,RS, 2RS, N,NR,ZN,ZNR16000 10-260 6000 ... 10-260 Z, ZZ,RS, 2RS, N,NR,ZN,ZNR 6200 10-220 ZZ,RS ... , 2RS, N,NR,ZN,ZNR 6300 10-190 ZZ,RS, 2RS, N,NR,ZN,ZNR 6400 ...