1.BW664310050 sun gear
applied for planetary gearbox.
2.Material:20MnCr5
3.Surface hardness:60-62HRC
4.Core hardness:36HRC

BW66430006 sun gear is used in a wide range.

Number of teeth:20

Standerd module:1.9

Standerd pressure angle:30°

The outer gear teeth M3 Z29 is made by hobbing and shaving.

The inner involute spline hole is made by broaching and slotting.We are quite confident to have excellent control on the deformation during heat treatment.