servo motor gear reducers

With the many commercial gearboxes on the market, it’s important to match the proper type of gearbox with the drive, motor, and load. Whenever a machine requires a servosystem (drive and engine), the gearbox type is critical for accurate and repeatable motion. Planetary gearboxes fit the bill for servo applications.

High-precision servo motor gear reducers helical planetary gearboxes are an excellent choice for applications that need accuracy and reliability. Planetary gearboxes have very low backlash rankings (typically ranging from one to nine arc-min), so when sized correctly provide a service existence of over 20,000 hours with virtually no maintenance. Helical planetary gears 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 provide power densities that means small bundle 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 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 parts, saving space and cash.

Output torque improves in direct proportion to the apparatus ratio, and top velocity of the output shaft decreases. If an application can withstand the reduced speed, a relatively little servosystem can supply high torque.

Gearboxes can also address inertia mismatches. For powerful servosystems — people that have high dynamic responses or low overshoot, for example – the ratio between the reflected load inertia and electric motor inertia should be as low as practical, preferably under ten-to-one. A precision gearbox decreases the reflected inertia by the square of the reduction ratio. For instance, using a 25:1 gearbox reduces the load’s reflected inertia by a factor of 625, a substantial improvement.