Smoothness and absence of ripple are crucial for the printing of elaborate color images on reusable plastic cups available at fast-food chains. The color image is made up of millions of tiny ink spots of many colors and shades. The complete glass is printed in one pass (unlike regular color separation where each color is definitely printed separately). The gearheads must operate efficiently enough to synchronize ink blankets, printing plates, and glass rollers without introducing any ripple or inaccuracies that may smudge the image. In this case, the hybrid gearhead reduces motor shaft runout mistake, which reduces roughness.
Sometimes a motor’s capability could be limited to the stage where it needs gearing. As servo manufacturers develop better motors that can muscle mass applications through more difficult moves and produce higher torques 
and speeds, these motors require gearheads equal 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, reasons to do therefore. Utilizing a gearhead with a servo motor or using a gearmotor can enable the use of a smaller motor, therefore reducing the machine size and cost. There are three primary advantages of choosing gears, each which can enable the utilization of smaller sized motors and drives and for that reason lower total system cost:
Torque multiplication. The gears and amount of the teeth on each gear develop a ratio. If a electric motor can generate 100 in-pounds of torque, and a 5:1 ratio equipment head is mounted on its result, the resulting torque will be near to 500 in-lbs.
When a motor is working at 1,000 rpm and a 5:1 ratio gearhead is mounted on it, the quickness at the output will be 200 rpm. This speed decrease can improve system performance because many motors usually do not operate efficiently at very low rpm. For example, consider a stone-grinding mechanism that will require the motor to run at 15 rpm. This slow quickness makes turning the grinding wheel tough because the motor tends to cog. The variable resistance of the rock being surface also hinders its simple turning. By adding a 100:1 gearhead and letting the electric motor run at 1,500 rpm, the engine and gear mind provides smooth rotation as the gearhead output offers 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 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 electric motor to the inertia of the load can enable the utilization of a smaller engine and outcomes in a far more responsive system that is easier to tune.
This is how servo motor gearbox can be used for your advantage.