... wholesale bearing distributors:1,ABEC-3,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise ... of wholesale bearing distributors.Features:1),Shield / closure: Open,Teflon Sealed,Rubber Seals,2 Metal Shield 2),Tolerance codes: ABEC-1, ABEC- ... 30mmCurrently, our miniature bearings contains the following types, Metal Shield Bearings Rubber Seals Bearings Teflon Sealed Bearingssingle row deep groove ...