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 comprises of an incredible number of tiny ink spots of many shades and shades. The entire glass is printed in a single move (unlike regular color separation where each color is certainly imprinted separately). The gearheads must run easily enough to synchronize ink blankets, printing plates, and glass 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.
Sometimes a motor’s capability could be limited to the stage where it requires gearing. As servo producers develop more powerful motors that can muscle mass 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 movement control systems in service use gearing at all. There are, of course, good reasons to do so. Using a gearhead with a servo electric motor or using an integrated gearmotor can enable the usage of a smaller motor, thereby reducing the machine size and cost. There are three primary advantages of going with gears, each which can enable the usage of smaller motors and drives and therefore lower total system cost:
Torque multiplication. The gears and number of tooth on each gear produce a ratio. If a electric motor can generate 100 in-lbs of torque, and a 5:1 ratio equipment head is attached to its output, the resulting torque will be close to 500 in-lbs.
When a motor is operating 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 decrease can improve system efficiency because many motors usually do not operate efficiently at very low rpm. For example, look at a stone-grinding mechanism that will require the motor to perform at 15 rpm. This slow velocity makes turning the grinding wheel difficult because the motor will cog. The variable level of resistance of the stone being floor also hinders its simple turning. With the addition of a 100:1 gearhead and letting the electric motor run at 1,500 rpm, the engine and gear head provides smooth rotation while the gearhead output provides a more constant pressure with its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque relative to frame size thanks to 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 servo gear reducer better match the inertia of the motor to 
the inertia of the strain can enable the use of a smaller electric motor and outcomes in a more responsive system that is easier to tune.