.High Performance,Long life 2,Competitive price 3,Quick delivery,good service 4,precision Miniature Bearings Features:2,Structure:General,flanged,extended inner ring3,Shield / closure: Open,Teflon Sealed,Rubber Seals,2 Metal Shield4,Tolerance codes: ABEC-1, ABEC-3, ABEC-5,ABEC-7 5,Vibration level codes: V4, V3, V2, V16,Internal clearance codes: C0,C2, C3, C4, C57,Material: AISI52100, AISI440C, ...