Needle Roller Bearing NK NKI 1.Material:GCr15,100Cr6,52100 2.Retainer:nylon cage,steel cage 3.Production standard:GB307, DIN6 Needle Roller Bearing NK NKI NA48 NA49 NA69Structure: This kind of bearings has multiple structures, such as narrow & wide type, with or without inner races, cages, ribs or seals.Accuracy: Dimensional tolerance and geometrical accuracy is based on GB/T 5801(ISO. 1206)The ...
