... precision,durability. 2.SGS,ISO9001:2000 Certificated. NAV4033 High quality Needle bearing 17x35x18mm a.High precision,quality,and durability,low friction. b ... .Its with high load capacity and rigidity. 2.Drawn cup needle roller bearings,HK,BK,SCE,BCE series.Formed with thin steel ... a long time. 3.Drawn up needle clutch,HF,HFZ series. 4.Entity bushed needle roller beaings,NK,NKS,NKI,NKIS,NA series ...