With the many industrial gearboxes available today, it’s vital that you match the proper kind of gearbox with the drive, motor, and load. When a machine requires 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 accuracy and reliability. Planetary gearboxes have got very low backlash rankings (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 also provide very quiet and better operation as compared to 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 with no need for a gearbox, however in many applications it’s advantageous to make use of a gearbox between your motor and load.
One main reason 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, developer can use smaller parts, saving space and cash.
Output torque raises in direct proportion to the apparatus ratio, and top speed of the result shaft decreases. If a credit card applicatoin can withstand the reduced speed, a relatively small servosystem can supply high torque.
Gearboxes can 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, ideally under ten-to-one. A precision gearbox decreases the reflected inertia by the square of the decrease ratio. For instance, using a 25:1 gearbox reduces the load’s reflected inertia by a factor of 625, a significant improvement.