Introduces a new technology for hobbing small module and fewer teethed gear with the usage of the transmission chain of Y631K spline shaft milling machine by adding the number of index change gears.

• 介绍利用Y631K花键轴铣床传动链,适当增加分度挂轮数,滚切小模数、少齿数齿轮轴的加工技术。