1.High Performance,Long life 2,Competitive price 3,Quick delivery,good service 4 ... motor,fishing reel,food machinery,instrument,dental...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 ... 375 inches R series high performence small steel ball berarings