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 LYC ZWZ, NTN, KOYO, IKO
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