precision gearbox

With the many industrial gearboxes available today, 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 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 require accuracy and reliability. Planetary gearboxes possess very low backlash rankings (typically ranging from one to nine arc-min), so when sized correctly offer a service existence of over 20,000 hours with virtually no maintenance. Helical planetary gears also provide very calm and better operation when compared with competitive products.

Precision gearboxes are carefully machined to high tolerances – believe clockmaker, not blacksmith. They provide 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 cause to employ a gearbox is torque multiplication. It lets designers use 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 increases in direct proportion to the gear ratio, and top acceleration of the result shaft decreases. If an application can withstand the reduced speed, a relatively small servosystem can supply high torque.

Gearboxes can also address inertia mismatches. For high performance servosystems — those with high dynamic responses or low overshoot, for example – the ratio between the reflected load inertia and electric motor inertia should be only practical, ideally under ten-to-one. A precision gearbox decreases the reflected inertia by the sq . of the reduction ratio. For instance, utilizing a 25:1 gearbox reduces the load’s reflected inertia by one factor of 625, a significant improvement.

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