Smoothness and absence of ripple are crucial for the printing of elaborate color images on reusable plastic-type material cups offered by fast-food chains. The colour image is made up of millions 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 printed separately). The gearheads must work smoothly enough to synchronize ink blankets, printing plates, and cup rollers without presenting any ripple or inaccuracies that may smudge the image. In this case, the hybrid gearhead reduces motor shaft runout error, which reduces roughness.
At times a motor’s capability may be limited to the stage where it requires gearing. As servo producers develop better servo gear reducer motors that can muscle mass applications through more complicated moves and create 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, good reasons to do therefore. Utilizing a gearhead with a servo engine 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 going with gears, each which can enable the usage of smaller motors and drives and therefore lower total system price:
Torque multiplication. The gears and number of teeth on each gear create a ratio. If a motor can generate 100 in-pounds of torque, and a 5:1 ratio equipment head is attached to its output, the resulting torque will be near to 500 in-lbs.
Whenever a motor is running 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 decrease can improve system overall performance because many motors do not operate efficiently at suprisingly low rpm. For example, look at a stone-grinding mechanism that will require the motor to perform at 15 rpm. This slow quickness makes turning the grinding wheel challenging 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 electric motor and gear mind provides smooth rotation while the gearhead output offers a more constant pressure with its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque in accordance with frame size because of lightweight materials, dense copper windings, and high-energy magnets. The effect is better inertial mismatches between servo motors and the loads they want 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 utilization of a smaller motor and results in a far more responsive system that is easier to tune.