1.Material:Y40um /1144 2.Hardness:HRC45-50 3.Technology:straight knurling .milling groove 4.Surface treatment:Carb

1.Material:Y40um /11442.Hardness:HRC45-°-50°

3.Surface treatment:Carburization

4.Technology:straight knurling .milling groove(groove depth:0.01mm-0.1mm)

5.Surface roughness:0.02μm

6.size tolerance:±0.01mm

7.Diameter:8mm8.length:78mm

Pin shaft