deep groove ball bearing 1,high quality product 2,reasonable price 3,good sales sevice 4,delivery soon deep groove ball bearing(1)1) Model Open, Z, ZZ, RZ,2RZ,RS, 2RS2) Quality level reach the same level as the Japanese and European bearings3) Tolerance level ABEC-1 (P0), ABEC-3 (P6),ABEC-5(P5)4) Noise Level EMQ V1 Z2, EMQ V2 Z3, EMQ V3 Z4, EMQ V45)Application home appliances,low noise and high ...