1.Forced honing planetary gear OEM suuply 2.Material:20MnCr5,8620H,20CrMoH,18CrNiMo5 3.DIN3962-3963 Class8 4.Roughness:Ra 0.8 Our Forced honing planetary gears are manufactured according to the design from customers.We are one of the main suppliers for Bonfiglioli Group for many years.The involute teeth M3 Z28 is made by hobbing, shaving and honing, with excellent control on the deformation ...