1.Sungear is applied for planetary gearbox 2.Material:20MnCr5, 20CrMoH 3.Gears processed with teeth hobbing and shaving 4.OEM Mechanical sungear is used in planetary reducers..The esternal teeth is made by hobbing and shaving, reaching precision from class 5 upto 8.The inner involute spline hole is made by broaching and slotting.we are quite confident to have excellent control on the deformation ...