Smoothness and absence 
of ripple are essential for the printing of elaborate color pictures on reusable plastic-type material cups available at fast-food chains. The colour image is made up of an incredible number of tiny ink dots of many colours and shades. The entire glass is printed in a single complete (unlike regular color separation where each color is published separately). The gearheads must operate easily enough to synchronize ink blankets, printing plates, and cup rollers without introducing any ripple or inaccuracies that may smudge the image. In this case, the hybrid servo motor gearbox gearhead decreases motor shaft runout mistake, which reduces roughness.
At times a motor’s capability may be limited to the point where it needs gearing. As servo producers develop more powerful motors that can muscle applications through more difficult moves and generate higher torques and speeds, these motors require gearheads equal to the task.
Interestingly, only about a third of the motion control systems in service use gearing at all. There are, of course, good reasons to do so. Utilizing a gearhead with a servo motor or using a gearmotor can enable the use of a smaller motor, therefore reducing the system size and cost. There are three main advantages of going with gears, each which can enable the use of smaller sized motors and drives and therefore lower total system cost:
Torque multiplication. The gears and quantity of teeth on each gear create a ratio. If a motor can generate 100 in-lbs of torque, and a 5:1 ratio gear head is attached to its result, the resulting torque will end up being close 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 functionality because many motors do not operate efficiently at very low rpm. For example, consider 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 tends to cog. The variable level of resistance of the rock being floor also hinders its simple turning. By adding a 100:1 gearhead and letting the motor run at 1,500 rpm, the engine and gear mind provides smooth rotation as the gearhead output provides a more constant drive using its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque in accordance with frame size thanks to lightweight components, dense copper windings, and high-energy magnets. The effect is greater inertial mismatches between servo motors and the loads they want to control. The utilization of a gearhead to better match the inertia of the engine to the inertia of the load can enable the use of a smaller motor and results in a more responsive system that’s easier to tune.