... 1.brand:SKF,NTN,HRB,NSK 2.Wholesale price and high quality 3.High precision,low noise and long life 4.Fast delivery ... roller bearing Specifications:1.HRB,LYC,SKF,NTN famous brands2.High quality,high precision,long life,low noise3.Service:professional OEM service ... coefficient of friction,it is not suitable for high speed Application:wheel.large size argriculture machinery.main shaft of machine tool. ...