gear hobbing machine is the most widely used in gear machine tool.It can cut straight teeth, helical cylindrical gears and also can processed worm and sprocket, etc. According to recent exhibition with hob process straight teeth, helical cylindrical bevel wheel and one word and the worm gear processing machine tools. This machine use special hob to processing the spline and various special toothed sprocket workpiece. Ordinary gear hobbing processing precision for 7 ~ 6 level (JB179-83), high precision for 4 ~ 3 grade gear hobbing. The largest machining diameter of 15 m. Gear hobbing machine is widely used in automobiles, tractors, machine tool, engineering machinery, mining machinery, metallurgy, machinery, petroleum, instrument, the plane and all kinds of mechanical manufacturing spacecraft.
