With the many commercial gearboxes available today, it’s vital that you match the proper type of gearbox with the drive, motor, and load. Whenever a machine needs a servosystem (drive and electric motor), the gearbox type is critical for accurate and repeatable movement. Planetary gearboxes fit the bill for servo applications.
High-precision helical planetary gearboxes are a great choice for applications that need precision and reliability. Planetary gearboxes have very low backlash rankings (typically ranging from one to nine arc-min), and when sized correctly offer a service life of over 20,000 hours with practically no maintenance. Helical planetary gears also provide very noiseless and more efficient operation when servo motor gear reducers compared with competitive products.
Precision gearboxes are carefully machined to high tolerances – think clockmaker, not blacksmith. They provide power densities that means small bundle size and efficiencies of 90% and greater.
Servomotors often drive loads directly with no need for a gearbox, but in many applications it’s beneficial to make use of a gearbox between your motor and load.
One main cause to use a gearbox is torque multiplication. It lets designers make use of smaller sized servosystems that consumes less energy. Instead of buying relatively huge servodrives and motors, designer can use smaller components, saving space and money.
Output torque boosts in direct proportion to the apparatus ratio, and top rate of the output shaft decreases. If a credit 
card applicatoin can withstand the decreased speed, a relatively little servosystem can supply high torque.