stainless flange ball bearing :1,ABEC-3,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1, ... Z2 5,C2,C0,C3... Lily bearing is a specialized manufacturer of ... stainless flange ball bearing. Features:1),Shield / closure: Open,Teflon Sealed ...