Combined needle roller bearing 1.Material:GCr15,100Cr6,52100 2.Retainer:nylon cage,steel cage 3.Reliable quality Combined needle roller bearingStructure: Various type as needle roller/axial ball,needle roller/angular contact ball,needle roller/cylindrical roller,needle roller/axial rollerAccuracy: Dimension tolerance and geometrical accuracy conform to ISO/JB/T 8877.Redial clearance conform to GB ...