With the many commercial gearboxes on the market, it’s vital that you match 
the proper kind of gearbox with the drive, motor, and load. Whenever a machine requires a servosystem (drive and electric motor), the gearbox type is critical for accurate and repeatable motion. Planetary gearboxes suit you perfectly for servo applications.
High-precision helical planetary gearboxes are a great choice for applications that require accuracy and reliability. Planetary gearboxes have got very low backlash ratings (typically ranging from one to nine arc-min), and when sized correctly provide a service life of over 20,000 hours with virtually no maintenance. Helical planetary gears provide very quiet and more efficient operation as compared to competitive products.
Precision gearboxes are carefully machined to high tolerances – believe clockmaker, not blacksmith. They offer 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 advantageous to use a gearbox between the motor and load.
One main cause to employ a gearbox is torque multiplication. It lets designers make use of smaller servo motor gear reducers servosystems that consumes much less energy. Rather than buying relatively huge servodrives and motors, developer can use smaller components, saving space and money.
Output torque raises in direct proportion to the apparatus ratio, and top speed of the result shaft decreases. If a credit card applicatoin can withstand the decreased speed, a relatively little servosystem can supply high torque.
Gearboxes may also address inertia mismatches. For high performance servosystems — those with high powerful responses or low overshoot, for instance – the ratio between your reflected load inertia and electric motor inertia should be only practical, ideally under ten-to-one. A precision gearbox decreases the reflected inertia by the square of the decrease ratio. For instance, using a 25:1 gearbox decreases the load’s reflected inertia by a factor of 625, a significant improvement.