P/n: 21300 series, 22200 series, 22300 series, 23100 series, 23200series, 24000 series, 24100 series and 23900 series Tapered bore 1:12 (suffix k), 1:30(suffix k30) Cage types: brass or steel(cc, ca, ma, mb) W33 available Precision:p0 p6 p5(abec-1, abec-3, abec-5) Material: chrome steel gcr15 Hardness:hrc 60-65 Service: oem service accepted, replacement of skf, fag. Nsk, lyc zwz, ntn, koyo, iko Welcome to contact us at anytime, thank you! Packing: according to customer requests
