Heavy duty Needle Bearing 1. HK,BK,HF,HFL series ... .OEM accepted. 4. Prompt delivery needle bearing Needle roller bearings have a high load carrying capacity in addition ... : K , K-ZW ,K-K ,K-ZWD series3) Heavy duty needle roller bearings : NK , NKS , RNA49,RNA69,RNA48,NKI,NKIS , ... RS , NA49 2RS ,NAO , RNAO , RNAV ,NAV series4) Thrust roller and cage assemblies : AXK , AXW ,K811. K812, K871 . K894 ...