genuine SKF bearing 1.high quality of bearing and packaging 2.ISO9001:2000 3.SKF,NSK,FAG 4.shorter delivery time genuine SKF bearing1.high quality of bearing and packaging2.ISO9001:20003.SKF,NSK,FAG4.shorter delivery timeDetails: (1)Shield / closure: Open ball bearing, Z, ZZ, RS, 2RS, 2RZ (2)Tolerance code: ABEC-1, ABEC-3, ABEC-5, ABEC-7 (3)Vibration level: V4, V3, V2, V1 (4)Radial play: C0, C2, ...