Smoothness and lack of ripple are essential for the printing of elaborate color images on reusable plastic material cups available at fast-food chains. The color image is made up of an incredible number of tiny ink spots of many shades and shades. The complete cup is printed in one pass (unlike regular color separation where each color is certainly imprinted separately). The gearheads must function easily enough to synchronize ink blankets, printing plates, and cup rollers without presenting any ripple or inaccuracies that may smudge the picture. In this case, the hybrid gearhead reduces motor shaft runout mistake, which reduces roughness.
At times a motor’s capability may be limited to the main point where it requires gearing. As servo manufacturers develop better motors that can muscle mass applications through more difficult moves and create higher torques and speeds, these motors require gearheads add up to the task.
Interestingly, no more than a third of the motion control systems operating use gearing at all. There are, of training course, good reasons to do therefore. Using a 
gearhead with a servo motor or using an integrated gearmotor can enable the use of a smaller motor, therefore reducing the machine size and cost. There are three primary advantages of going with gears, each which can enable the use of smaller sized motors and drives and therefore lower total system price:
Torque multiplication. The gears and quantity of the teeth on each gear generate a ratio. If a motor can generate 100 in-lbs of torque, and a 5:1 ratio gear head is servo motor gearbox attached to its output, the resulting torque will end up being close to 500 in-lbs.
When a motor is working at 1,000 rpm and a 5:1 ratio gearhead is attached to it, the quickness 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, consider a stone-grinding mechanism that will require the motor to perform at 15 rpm. This slow velocity makes turning the grinding wheel hard because the motor will cog. The variable resistance of the stone being floor 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 mind provides smooth rotation while the gearhead output offers a more constant drive with 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 result is better inertial mismatches between servo motors and the loads they are trying 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 engine and outcomes in a far more responsive system that’s easier to tune.