Smoothness and lack of ripple are essential for the printing of elaborate color images on reusable plastic-type cups offered by fast-food chains. The color image comprises of an incredible number of tiny ink dots of many colors and shades. The entire cup is printed in a single pass (unlike regular color separation where each color is printed separately). The gearheads must run smoothly enough to synchronize ink blankets, printing plates, and glass rollers without introducing any ripple or inaccuracies that may smudge the picture. In cases like this, the hybrid gearhead reduces motor shaft runout error, which reduces roughness.
Sometimes a motor’s capability could be limited to the main point where it needs gearing. As servo producers develop better motors that can muscle tissue applications through more complicated moves and create higher torques and speeds, these motors require gearheads equal to the task.
Interestingly, no more than a third of the motion control systems operating use gearing at all. There are, of course, good reasons to do so. Using a gearhead with a servo electric motor or using a built-in gearmotor can enable the use of a smaller motor, thereby reducing the system size and price. There are three major advantages of going with gears, each of which can enable the use of smaller motors and drives and therefore lower total system price:
Torque multiplication. The gears and quantity of the teeth on each gear produce a ratio. If a electric motor can generate 100 in-lbs of torque, and a 5:1 ratio equipment head is attached to its result, the resulting torque will end up being near to 500 in-lbs.
Whenever a motor is working at 1,000 rpm and a 5:1 ratio gearhead is attached to it, the swiftness at the output will be 200 rpm. This speed reduction can improve system overall performance because many motors do not operate efficiently at suprisingly low rpm. For example, look at a stone-grinding mechanism that requires the motor to run 
at 15 rpm. This slow rate makes turning the grinding wheel challenging because the motor will cog. The variable resistance of the stone being surface also hinders its ease of turning. With the addition of a 100:1 gearhead and letting the engine run at 1,500 rpm, the motor and gear mind servo gear reducer provides smooth rotation while the gearhead output provides a more constant drive with its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque in accordance with frame size because of lightweight components, dense copper windings, and high-energy magnets. The result is higher inertial mismatches between servo motors and the loads they want to control. The usage of a gearhead to raised match the inertia of the motor to the inertia of the strain can enable the utilization of a smaller engine and outcomes in a more responsive system that’s easier to tune.