Heavy duty Needle Bearing 1. HK,BK,HF,HFL series 2. high ... .OEM accepted. 4. Prompt delivery needle bearing Needle roller bearings have a high load carrying capacity in addition to their low ... assemblies : K , K-ZW ,K-K ,K-ZWD series3) Heavy duty needle roller bearings : NK , NKS , RNA49,RNA69,RNA48,NKI,NKIS ...