The arc gear is one of basic parts in crown tooth coupling.Arc gear is always machined in special arc gear hobbing machine.Through the analysis of arc gear and the structure characteristic of the general gear hobbing machine
and the toolof machining arc gear in general gear hobbing machine is designed.The tool of machining arc gear in general gear hobbing machine is used in manufacturer successfully.Meanwhile
the the patent for the tool of machining arc gear in general gear hobbing machine is got.