Detailed Product Description IKO needle bearing1.)Drawn Cup Needle Roller Bearings:HK series, BK series, ... , F series, FY series, FH series;2.)Needle Roller Bearings:NK series, NKS series, RNA49 series ... RNAO series, RNAV series, NAV series;3.)Radial Needle Roller and Cage Assemblies:K series, K -ZW ... series, KZK series, KBK series;4.)Axial Needle Roller Bearings:K811 series, K812 series, TC series ...