By adjusting the crank position in the bull gear( either away from centre- increasing/nearer to center-decreasing) we can change it. It can be done by a bevelgear assembly. It will slide the crank, by rotating the rod in the right side of the machine frame.. Thank you.. Happy learning 😊😊
hi Mr.Prakash, the cost of the machine depends on the specification pa. For education purposes, 18 -inch stroke length shaper enough it costs around 90,000rs. for industrial standard minimum 2,00,000rs shaper machine.www.tradeindia.com/manufacturers/gear-shaping-machine.html