Name:Needle Rollers Material standard: GCr 15 Outside diameter: 0.7-16.0mm Hardness standard: HRC58-65 Grade:G1 End surfa

Needle rollers are used in automotive transmissions, universal joints, front wheeldrive, constant velocity joints water pump bearings, roller clutches, rollerizedcam lifters, rocker arms, cam rollers, starter drives and as pins and dowelsfor various applications. Specifications: 1) Materials standard: - AISI 52100 or SAE 52100 bearing quality chrome steel2) Hardness standard: - HRC 58 to 643) Surface finish standard: - OD ground and lapped to surface finish of     0.020um Ra max.4) Alternative: surface finish of 0.025um Ra (max.) is available on requests5) Tolerance outside diameter (mm) - standard: +0.000 to - 0.005 [G5]6) Length - standard: +0.000 to - 0.500Applications: needle rollers are available special end forms provide performancebenefits for specific kinds of applications as shown below:1) I-Type BR (rounded ends)2) II-Type BP (flat underground ends)3) III-Type BPM (flat ground ends)

4*4mm Needle Roller