A planetary gearbox is a mechanism that lowers the speed or torque of a rotating input shaft by using a system of gears that revolves around a central gear. There are three main components in a planetary gearbox: the sun gear, the planet gears and the ring gear. The gears are attached to the planet carrier that has teeth on the inside, which is the ring gear.
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DieQua CorporationBloomingdale, IL 630-980-1133 DieQua prefers a consultative approach to determine the optimum solution for the type of planetary gearbox you are looking for & the requirements you may have. While there is a lot of info on DieQua's site for your personal investigation, their friendly & experienced team invites you to call them with your questions. It`s through identifying your unique needs that DieQua can be most helpful.
Boston GearCharlotte, NC 800-825-6544 For over a century, some of the most important breakthroughs in power transmission have been lead by Boston Gear. The good people at Boston Gear continue to lead the next century of innovations in power transmission technology. With a full complement of mechanical & electrical solutions, Boston Gear is a fully committed to delivering you the planetary gearbox you've been waiting for.
Groschopp, Inc.Sioux Center, IA 800-829-4135 For over 70 years, Groschopp has been a leading supplier/manufacturer of speed reducers, gear reducers, right angle speed reducers, planetary gear speed reducers, gear motors and more. Groschopp provides the best in quality, service and price. Our motors can be shipped to your door in two days.
NORD Gear CorporationWaunakee, WI 888-314-6673 With their powerful drive solutions, NORD puts even the "Goliaths" of this world into motion: huge cranes, retractable roofs, luggage conveyor belts & ski lifts, to name just a few. No matter what your application is, NORD is sure to put it into motion. Choose NORD as your one-stop-shop for all of your speed control needs- call to order a superior planetary gearbox today!
Cleveland Gear CompanyCleveland, OH 800-423-3169 Put Cleveland's foundation of quality & history of excellence to work for you and call their experienced staff today for a quality planetary gearbox that meets all of your requirements. Through a contiguous program of research and development, the name "Cleveland" has steadily maintained leadership in industry and today Cleveland Gear is one of the highest regarded suppliers of its kind.
Motor & Gear Engineering, Inc.Doraville, GA 770-454-9001 Motor & Gear Engineering's mission is to provide customers that rely on motor, gear & hydraulic systems with reliable startup & repair applications to ensure continuous production operations. From initial project design through solving emergency issues, you can rely on Motor & Gear to keep you up and running. Be smart and choose M&G for your next planetary gearbox purchase.
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Planetary gearboxes are able to produce many different reduction ratios because of the different planet gears that revolve around the sun gear. Planetary gearboxes are constructed of heavy duty metal such as steel and are able to handle large shock loads well. However, different planetary gearboxes are designed for specific speed, load and torque capacities. The predominant use for planetary gearboxes is in motor vehicles with automatic transmissions. Unlike manual transmission, in which the operator is responsible for switching gears, automobiles that have automatic transmissions use clutches, brake bands and planetary gearboxes to change the inputs and outputs, thereby adjusting the speeds accordingly. An automatic transmission contains two complete planetary gearsets placed together into one component. Planetary gearboxes are also used in electric screwdrivers, sprinklers and applications that require large or multiple reductions from a compact mechanism. Planetary gearboxes are one of many variations of speed reducers and it is important that the right mechanism is used. Gearboxes may even be combined to produce the desired results and the most common kinds are helical gear reducers, worm gear reducers and inline gear reducers.
Planetary gearboxes gain their advantages through their design. The sun gear's central position allows the planet gears to rotate in the same direction and for the ring gear (the edge of the planet carrier) to turn the same way as the sun gear. In some arrangements the sun gear can simultaneously turn all the planets as they also engage the ring gear. Any of the three components may be the input, the output or held stationary, which results in many different reduction ratio possibilities. In many planetary gearboxes one component is held stationary with another component serving as the input and the other as output. The reduction ratios for planetary gearboxes are dependent upon the number of teeth in the gears and what components are engaged. Generally, the load ability and torque increases with the number of planets in the system because the load is distributed among the gears and there is low energy waste; planetary gearboxes are highly efficient, averaging between 96 and 98%. The design is complex, however, and difficult to access for repairs or maintenance.
