... suitable for machining of cylindrical spur gear,bevel wheel,turbine,chain wheel. Y31125E gear hobbing machine is suitable for ... wheel,turbine,chain wheel. Main Technical Specification of Y31225E gear hobbing machine: SpecificationsDataUnitMax. diameter of work-piece (D ... has 31,000 square meters of factory, about 100 sets machining equipments, advanced fabrication plants and powerful technical forces. ...