With the many industrial gearboxes on the market, it’s important to match the proper kind of gearbox with the drive, motor, and load. When a machine requires a servosystem (drive and motor), the gearbox type is crucial for accurate and repeatable movement. Planetary gearboxes suit you perfectly for servo applications.
High-precision helical planetary gearboxes are an excellent choice for applications that need precision and reliability. Planetary gearboxes have got very low backlash ratings (typically ranging from someone to nine arc-min), and when sized correctly provide a service life of over 20,000 hours with virtually no maintenance. Helical planetary gears also provide very quiet and better 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 package size and efficiencies of 90% and greater.
Servomotors often drive loads directly with no need for a gearbox, however in many applications it’s beneficial to make use of a gearbox between the motor and load.
One main reason to use a gearbox is torque multiplication. It lets designers make use of smaller servosystems that consumes much less energy. Rather than buying relatively huge servodrives and motors, designer can use smaller elements, saving space and money.
Output torque improves in direct proportion to the apparatus ratio, and top speed of the output shaft decreases. If an application can withstand the decreased speed, a relatively little servosystem can supply high torque.
Gearboxes can 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, preferably under ten-to-one. A precision gearbox servo motor gear reducers decreases the reflected inertia by the sq . of the decrease ratio. For instance, utilizing a 25:1 
gearbox reduces the load’s reflected inertia by a factor of 625, a substantial improvement.