Planetary Gear Manufacturers and Companies

IQS Directory provides an extensive list of planetary gear manufacturers and suppliers. Utilize our website to review and source planetary gear manufactures with our easy-to-use features which allow you to locate planetary gear companies that will design, engineer, and manufacture planetary gears for your exact specifications. Our request for quote forms make it easy to connect with leading planetary gear manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for planetary gear set, planetary gearbox, or planetary gear reducer.

  • Joliet, IL

    At Omni G & M Corporation, experienced and dedicated engineers specialize in precision machined custom planetary gears in addition to many more similar products in a variety of sizes and types for use in any type of application. Omni stocks a large selection of materials including bronze, synthetic, fibre and alloys up to 12 inches in diameter. No job is too large or too small for Omni.

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  • East Walpole, MA

    It is our goal as a company with three generations of experience to share our experience with our customers. We have a variety of products and services that will benefit customers of all sizes, including custom machining, fast shipping, and affordable prices. You will find that our experience is worth looking into. Learn more about us and our products online today!

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  • Syracuse, NY

    Gear Motions is a leading gear manufacturer specializing in supplying custom cut and ground gears. Whether we’re manufacturing your gear complete or working from your blanks, our wide range of precision gear manufacturing capabilities and services deliver quality gears to meet almost any application. The Gear Motions network is capable of manufacturing all types of products including precision ground helical, spur, bevel and worm gears, sprockets, timing pulleys, shafts, splines and more.

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  • Farmingdale, NY

    Precipart is your supplier for cost-effective custom gears to satisfy the most demanding precision control applications, as we have complex gear capability. We will meet exact needs with bevel gears, helical gears, internal ring gears, spur gears, worm gears, anti backlash gears & gear assemblies. Our mission is to provide customers with the highest level of value-added solutions for their needs.

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  • South Bend, IN

    Schafer Gear Works is a leading producer of high-precision, custom-engineered industrial gears & machined parts. Look to us for the production of your spur, helical or internal gears. Since 1934, our values of hard work & commitment to customer satisfaction have been well ingrained into the culture of our company. Bring us your most demanding specifications and we’ll provide effective solutions.

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  • Cleveland, OH

    Cleveland Gear Company has specialized in worm gear technology including industrial gears, helical gears, worm gears and precision gears since 1912. Applications include steel production, electric power generation, and material transport. Fulfilling your exact requirements is what has and continues to make Cleveland Gear one of the top manufacturers of gearing and enclosed gear drives.

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Planetary Gears Industry Information

Planetary Gears

Planetary gears, or epicyclic gears, consist of three or more outer gears (referred to as planet gears), which revolve around a central gear (also known as a sun gear). The allusions to the solar system refer to the design of the planetary gear; all of the gears in the planet gear are in one plane and are grouped around each other, similar to planets surrounding the sun.

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Applications of Planetary Gears

Planetary gears are crucial in complex automotive transmissions, drive trains, and other applications where complex gear ratios are required for smooth torque transmission. These complex and drastic gear ratios are possible since planetary gears have the ability to produce different gear ratios depending on which gear is used as the input, which gear is the output, and which gear is stationary.

Planet gears are also used in industrial automation and motion control applications, such as wind turbines, bicycles, helicopters, heavy machinery, electric motors, and paper feeders. Planetary gears are often used in industries such as marine, automotive, mining, military, commercial, construction, chemical processing, aerospace, and agricultural.

Characteristics of Planetary Gears

Planetary gears typically come in sets of two or more that operate on or inside larger industrial gears. These are referred to as planetary gear systems. In a planetary gear system, the exterior gears interlock with the inward-facing teeth of a larger internal gear, increasing the output speed of the large outer gear through rotational torque applied to the internal sun gear. The four main components that make up these planetary gear sets are the sun gear, the ring gear, the planet pinions, and the planet carrier. The sun gear is the center of the planetary gear system. The ring gear, or internal gear, is named due to both its shape and its internal teeth and connects the epicyclic gear set to an output shaft. The planetary pinions are gears with a small number of teeth designed to mesh with a larger wheel, which is the ring gear.

Engaged simultaneously by the sun gear, each of the planetary gears applies torque to the ring gear, which in turn supplies torque to the output shaft. The planetary pinions are attached to a rotating plate, which is the planet carrier. In order for the planetary gear set to function, either the sun gear, planet carrier or ring gear must be held stationary. While one is held stationary, one of the remaining two components serves as the input and provides power to the system, while the other serves as the output and receives power from the system. The ratio of input rotation to output rotations depends upon two key factors: the number of teeth in each gear and which component is held stationary.

Advantages and Disadvantages of Using Planetary Gears

Some advantages of planetary gears include high power density, increased torque capability, pure torsional reactions, and large reduction in small volumes. However, there are disadvantages to using planet wheels as well, which include design complexity, high bearing loads, and inaccessibility.

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