... level:Z1,Z2 5,C2,C0,C3... needle bearing inner ring,Lily bearing is a specialized manufacturer of needle thrust bearings ... , K...ZW Needle roller and cage assemblies, rod use KZK, KBK Needle roller bearings without inner ring, NK, RNA, NKS Needle roller ... , RNAV Needle roller bearings with inner ring full complement, NAV Axial thrust needle roller and cage assemblies, AXK, AXW Axial thrust needle ...