... 4.Ten years experience Manufactruer of roller bearing from China :1.Tapered roller bearing skf2.Precision: p0,p6,p5,p4,p23 ... stock guarantee4.Ten years industry experience Specification of taper roller bearing: ItemSpecificationsModelAll 20 seriesMaterialChrome Steel, Carbon Steel, Stainless steelBore ... 3), P5(ABEC-5), P4(ABEC-7), P2(ABEC-9)Seal typeOpen, Z, ZZ, RS, 2RSInner clearance standardsC2, C0, ...