1.Grinding planetary gear supply for OEM 2.Material:20MnCr5,8620H,20CrMoH, ... 4.Hardness:59-62HRC 5.Roughness: Ra 0.8 Our Grinding planetary gear are manufactured according to the design from customers ... of teeth:26Module:2.5Pressure angle:20Addendum Modification:0.41.Grinding planetary gear supply for OEM2.Material:20MnCr5,8620H,20CrMoH,18CrNIMo54 ...