Smoothness and lack of ripple are essential for the printing of elaborate color pictures on reusable plastic 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 entire glass is printed in a single pass (unlike regular color separation where each color is printed separately). The gearheads must work efficiently enough to synchronize ink servo gear reducer blankets, printing plates, and glass rollers without presenting any ripple or inaccuracies that may smudge the image. In cases like this, the hybrid gearhead decreases motor shaft runout error, which reduces roughness.
Sometimes a motor’s capability may be limited to the point where it requires gearing. As servo producers develop more powerful motors that can muscle tissue applications through more difficult moves and produce higher torques and speeds, these motors require gearheads add up to the task.
Interestingly, only about a third of the motion control systems in service use gearing at all. There are, of training course, reasons to do so. Utilizing a gearhead with a servo motor or using a built-in gearmotor can enable the use of a smaller motor, thereby reducing the system size and cost. There are three major advantages of going with gears, each which can enable the utilization of smaller motors and drives and therefore lower total system price:
Torque multiplication. The gears and quantity of tooth on each gear develop a ratio. If a motor can generate 100 in-pounds of torque, and a 5:1 ratio gear head is attached to its output, the resulting torque will be near to 500 in-lbs.
Whenever 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 reduction can improve system efficiency 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 perform at 15 rpm. This slow quickness makes turning the grinding wheel challenging because the motor tends to cog. The variable level of resistance of the stone being ground also hinders its simple turning. With the addition of a 100:1 gearhead and letting the motor run at 1,500 rpm, the electric motor and gear mind provides smooth rotation while the gearhead output offers a more constant power using 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 higher inertial mismatches between servo motors and the loads they want to control. The use of a 
gearhead to raised 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 far more responsive system that is easier to tune.