Deep groove ball bearings mainly take radial load as well as moderate axial load. With less coefficient of friction, less vibration and noise,less energy consumption, high limiting speed, large size range and variations of structure. Detailed Description 1) Model Open, Z, ZZ, RZ,2RZ,RS, 2RS 2) Quality level reach the same level as the Japanese and European bearings 3) Tolerance level ABEC-1 (P0), ABEC-3 (P6),ABEC-5(P5) 4) Noise Level EMQ V1 Z2, EMQ V2 Z3, EMQ V3 Z4, EMQ V4 5)Application home appliances,low noise and high speed electric motors; automotive components, pumps,machinery.