With the many industrial gearboxes on the market, 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 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 an excellent choice for applications that require 
accuracy and reliability. Planetary gearboxes possess very low backlash ratings (typically ranging from someone to nine arc-min), so when sized correctly offer a service lifestyle of over 20,000 hours with virtually no maintenance. Helical planetary gears also provide very peaceful and more efficient operation when compared with competitive products.
Precision gearboxes are carefully machined to high tolerances – think clockmaker, not blacksmith. They offer power densities that means small package size and efficiencies of 90% and greater.
Servomotors often drive loads directly without the need for a gearbox, but in many applications it’s advantageous to make use of a gearbox between the motor and load.
One main cause to employ a gearbox is torque multiplication. It lets designers use smaller servosystems that consumes much less energy. Rather than buying relatively large servodrives and motors, designer can use smaller components, saving space and money.
Output torque raises in direct proportion to the gear ratio, and top rate of the output shaft decreases. If a credit card applicatoin can withstand the servo motor gear reducers reduced speed, a relatively little servosystem can supply high torque.
Gearboxes may also address inertia mismatches. For high performance servosystems — people that have high dynamic responses or low overshoot, for example – the ratio between the reflected load inertia and engine inertia should be only practical, preferably under ten-to-one. A precision gearbox reduces the reflected inertia by the square of the reduction ratio. For instance, utilizing a 25:1 gearbox decreases the load’s reflected inertia by a factor of 625, a significant improvement.