Roller Gear Index is constructed roller gear cam(input part) and turret(output part) and cam is a concave golobidal cam which is rectangularlely assembled with turretin positive contact. The benefits of positioning an intermittent index drive based on a positive motion camare obvious. However the more demanding requirements of index drive include a higher degree of rigidity, a positive motion mechanism to insure no backlash, and the flexibilityto adapt to various applications.The roller gear index mechanism is in high demand for industrial machines because it possesses these features and characteristics. TABLE TYPE ROLLER GEAR INDEX  Standard line of shaft ...distance.. 45mm~435mm...Shaft type 45mm~180mm...Flange type 45mm~435mm...Table type 70mm~440mm  Standard No. of stops : 2~16 stops  Cylindrical and flanged output shaft  Various install position and mounting  Options :mounting the torque limiters, ...reducers, clutch & brakes, motors etc.