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 engine), the gearbox type is crucial for accurate and repeatable motion. Planetary gearboxes suit you perfectly for servo applications.
High-precision helical planetary gearboxes are an excellent choice for applications that require precision and reliability. Planetary gearboxes possess very low backlash rankings (typically ranging from one to nine arc-min), and when sized correctly offer a service existence of over 20,000 hours with practically no maintenance. Helical planetary gears also provide very noiseless and better operation when compared with competitive products.
Precision gearboxes are carefully machined to high tolerances – think clockmaker, not blacksmith. They offer power densities that translates to small package size and efficiencies of 90% and greater.
Servomotors often drive loads directly without the need for a gearbox, however in many applications it’s advantageous to make use of a gearbox between your motor and load.
One main reason to employ a gearbox is torque multiplication. It lets designers use smaller servosystems that consumes less energy. Instead of buying relatively large servo motor gear reducers servodrives and motors, developer can use smaller components, saving space and money.
Output torque raises in direct proportion to the apparatus ratio, and top acceleration of the output shaft decreases. If a credit card applicatoin can withstand the decreased speed, a relatively small servosystem can supply high torque.
Gearboxes may also address inertia mismatches. For powerful servosystems — people that have high dynamic responses or low overshoot, for example – the ratio between your reflected load inertia and engine 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 reduces the load’s reflected inertia by one factor of 625, a significant improvement.