... Needle bearing 1Material:chrome steel Gcr15 or as requirement 2Size:5-1500mm 3.ISO9001-2000certificate 4various type Needle bearing:1.Material: ... chrome steel Gcr15 or as requirement2.Size:5-1500mm3.ISO9001-2000certificate4.High quality ,low price,OEM service5..Various ... ring seriesCF,KR,CR,NUTR,NATR,RAN222RS,STO,NUKR...(8) Roller and cage assemblies seriesK,KT,KBK,KZK,KZW...(9) Heavy ...