Nov 01, 2008
Shield / closure: open ball bearing, Z, ZZ, RS, 2RS,2RZ
Ball bearings snap ring: N, NR
Tolerance codes: ABEC-1, ABEC-3, ABEC-5
Vibration level codes: V4, V3, V2, V1
Internal clearance codes: C2, C3, C4, C5
Ball bearings material: GCr15,...