... K...ZW Needle roller and cage assemblies, rod use KZK, KBK Needle roller bearings without inner ring, NK, RNA, NKS Needle roller ... bearings, NKI, NA Needle roller bearings, flanges, without inner ring, RNAO, RNAO, ZW Needle roller bearings, flanges, with inner ... RNAV Needle roller bearings with inner ring full complement, NAV Axial thrust needle roller and cage assemblies, AXK, AXW Axial thrust needle ...