Deep groove ball bearings: 1) Bearing type: 6002~6022,6201~6219,6301~6319, 6403~6415 2) Model: Open, Z, ZZ, RZ,2RZ,RS, 2RS 3) Quality level: reach the same level as the Japanese and European bearings 4) Tolerance level: ABEC-1 (P0), ABEC-3 (P6) , ABEC-5(P5) 5) Noise Level: EMQ V1 Z1, EMQ V2 Z2, EMQ V3 Z3, EMQ V4 Z4 6) Application: home appliances, low noise and high speed electric motors, automotive components, pumps, machinery. 7) Bearings can be used at operating temperature: from -86F to +392F Bore diameter: from 10mm to 300mm.