... life 4.Prompt delivery,OEM service needle bearing: Needle roller bearings have a high load carrying capacity in addition to ... , FY , HF , HFL series2) Needle roller and Cage assemblies : K , K-ZW ,K-K ,K-ZWD series3) Heavy duty needle roller bearings : NK , NKS , RNA49,RNA69, ... RS , NA49 2RS ,NAO , RNAO , RNAV ,NAV series4) Thrust roller and cage assemblies : AXK , AXW ,K811. K812, K871 . K894 sries5 ...