... quality and competitive prices 4)ISO9001 class Trust Needle roller bearing We are professional manufactuer .1. Model: LZ series, HK SERIES ... 2. Materials: GCr15, GCr15SiMn, G20Cr2Ni4A etc Ring and cages: Chrome bearing steel Balls: Chrome steel or carbon structural steel Cover: Rubber ... : Air,Sea,Express7.Origin Brand:SKF,NSK,FAG,NTN,TIMKEN,THK,KOYO,IKO,NB,ZWZ,LYC,HRB etc.8.Packaging : standard ...