Smoothness and absence of ripple are essential for the printing of elaborate color pictures on reusable plastic material cups offered by fast-food chains. The colour image is made up of millions of tiny ink dots of many colors and shades. The entire glass is printed in one complete (unlike regular color separation where each color is usually imprinted separately). The gearheads must function smoothly enough to synchronize ink blankets, printing plates, and cup rollers without presenting any ripple or inaccuracies that may smudge the picture. In cases like this, the hybrid gearhead decreases 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 manufacturers develop more powerful motors that can muscles applications through more difficult moves and create higher torques and speeds, these motors need gearheads add up to the task.
Interestingly, no more than a third of the movement control systems in service use gearing at all. There are, of training course, good reasons to do therefore. Using a gearhead with a servo engine or using an integrated gearmotor can enable the usage of a smaller motor, thereby reducing the system size and cost. There are three principal advantages of going with gears, each which can enable the use of smaller sized motors and drives and for that reason lower total system cost:
Torque multiplication. The gears and quantity of the teeth on each gear produce a ratio. If a engine can generate 100 in-pounds of torque, and a 5:1 ratio equipment head is attached to its result, the resulting torque will become close to 500 in-lbs.
Whenever a motor is running at 1,000 rpm and a 5:1 ratio gearhead is attached to it, the acceleration at the output will be 200 rpm. This speed reduction can servo gear reducer improve system efficiency because many motors do not operate efficiently at suprisingly low rpm. For example, consider a stone-grinding mechanism that will require the motor to run at 15 rpm. This slow swiftness makes turning the grinding wheel challenging because the motor tends to cog. The variable level of resistance of the stone being surface also hinders its simple turning. By adding a 100:1 gearhead and letting the engine run at 1,500 rpm, the electric motor and gear head provides smooth rotation as 
the gearhead output provides a more constant push 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 greater 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 electric motor to the inertia of the strain can enable the use of a smaller electric motor and results in a more responsive system that’s easier to tune.