... 5.NSK,SKF bearing 1. YUDA MACHINERY is a professional wood pellet machinery supplier ,10 years experience in design ,manufacture ,installation ... the require and also easy for communication .2.Yuda seraies wood pellet machine ,using NSK ,SKF,and SAG high speed bearing ... axises ,to ensure all our machines running stable .3.the wood pellet mill was designed with a outo rubirication oil circle ...