Smoothness and lack of ripple are crucial for the printing of elaborate color pictures on reusable plastic-type cups available at fast-food chains. The color image comprises of millions of tiny ink spots of many colors and shades. The complete glass is printed in one move (unlike regular color separation where each color is certainly published separately). The gearheads must operate smoothly enough to synchronize ink blankets, printing plates, and glass rollers without introducing any ripple or inaccuracies that may smudge the image. In this instance, the hybrid gearhead reduces motor shaft runout mistake, which reduces roughness.
At times a motor’s capability may be limited to the stage where it requires gearing. As servo producers develop more powerful motors that can muscles applications through more complicated moves and create higher torques and speeds, these motors require gearheads equal to the task.
Interestingly, only about a third of the movement control systems in service use gearing at all. There are, of program, reasons to do therefore. Utilizing a gearhead with a servo motor or using an integrated gearmotor can enable the use of a smaller motor, therefore reducing the system size and cost. There are three major advantages of choosing gears, each which can enable the utilization of smaller sized motors and drives and therefore lower total system cost:
Torque multiplication. The gears and quantity of teeth on each gear make a ratio. If a engine can generate 100 in-lbs of torque, and a 5:1 ratio equipment head is mounted on its output, the resulting torque will become close to 500 in-lbs.
Whenever a motor is operating at 1,000 rpm and a 5:1 ratio gearhead is mounted on it, the speed at the output will be 200 rpm. This speed reduction can improve system functionality because many motors do not operate efficiently at very low rpm. For example, look at a stone-grinding mechanism that requires the motor to run at 15 rpm. This slow velocity makes turning the grinding wheel challenging because the motor will cog. The variable level of resistance of the stone being surface also hinders its simple turning. With the addition of a 100:1 gearhead and letting the motor run at 1,500 rpm, the motor and gear 
head provides smooth rotation as the gearhead output offers a more constant force with its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque relative to frame size because of lightweight materials, dense copper windings, and high-energy magnets. The result is better inertial mismatches between servo motors and the loads they are trying to control. The use of a gearhead to raised match the inertia of the engine to the inertia of the strain can enable the use of a smaller engine and outcomes in a more responsive system that is easier to tune.
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