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. When a machine needs 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 need precision and reliability. Planetary gearboxes possess very low backlash ratings (typically ranging from someone to nine arc-min), and when sized correctly offer a service life of over 20,000 hours with virtually no maintenance. Helical planetary gears provide very noiseless and servo motor gear reducers 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 bundle 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 the motor and load.
One main reason to employ 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 components, saving space and money.
Output torque boosts in direct proportion to the apparatus ratio, and top quickness 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 — people that have high powerful responses or low overshoot, for example – the ratio between the reflected load inertia and motor inertia should be only practical, ideally under ten-to-one. A precision gearbox decreases the reflected inertia by the sq . 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.