Gearbox Manufacturers and Companies

IQS Directory is a top industrial directory listing of leading industrial gearbox manufacturers and suppliers. Access our comprehensive index to review and source gearbox manufacturers with preview ads and detailed product descriptions. These gearbox companies can design, engineer and manufacture gearboxes to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these gearbox manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of inline gear reduction boxes, inline gearbox reducers, or right angle gear reducers.

  • Bloomingdale, IL

    DieQua is a manufacturer and supplier of the widest range of speed reducers, including helical & helical/bevel gear motors, inline & right angle servo gear heads, low backlash spiral bevel gearboxes and customized gearbox designs. DieQua also has the experience and know-how to help you select the optimal gear technology for your unique application.

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  • Cleveland, OH

    Cleveland Gear Co. has specialized in speed control technology including a variety of quality manufactured speed reducers since 1912. We have successfully developed speed reducers for material handling, mineral processing, and more. You will find that our products have uncompromising quality, making all others less than the best. We will fulfill your exact requirements and that's what continues to make Cleveland Gear one of the top manufacturers in our industry.

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  • Salem, NH

    Onvio has manufactured high precision components and solutions for over 35 years. Our line of products includes speed reducers, planetary gears, and more. We also provide integrated subassemblies and complete systems. We are committed to working alongside our customers in order to ensure that they achieve their ideal design goals while staying within their budget. Whether your industry is in automation, robotics, or motion control, let our team handle your requirements.

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  • Greene, ME

    TNE, Inc. provides quality products and services, specializing in new, surplus, used and rebuilt Falk gear reducers. Visit us online to search our inventory of over 1,000 gearboxes, worm gears, right angle gear boxes, etc. Because of our quality work, all of our rebuilt equipment has a one year warranty.

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  • Milwaukee, WI

    Rexnord is a custom manufacturer and distributor of power transmission and conveying components including gearboxes, gear motors, right angle gear boxes and right angle speed reducers. With more than 100 years of experience, service and technical support, Rexnord gears maximize performance while lowering total cost of ownership.

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  • More Gearbox Companies

Gearbox Industry Information


A gearbox (also spelled “gear box”), which is also commonly referred to as a transmission, is a mechanism used to increase torque while simultaneously decreasing the speed of a motor-powered object or system. Typically located at the junction point of a power shaft, it does so by transferring energy from one device to another. Most often, gearboxes are thought of in conjunction with automobiles. They are, of course, used extensively with automobiles, but they can also be paired with other types of vehicles and technology. These include rotary mowers, helicopters and wind turbines.

Quick links to Gearbox Information

Design of Gearboxes

An individual gear box is constructed carefully, with a specific purpose in mind. For that reason, every gearbox is built with a specific gear ratio, which supplies it with the correct level of force needed for the task at hand. Sometimes, gearboxes create a right angle change in direction. This feature is particularly valued for the proper function of rotary motors in helicopters. No matter its exact configuration, the construction of a gearbox is, by and large, fixed. The only feature of a gearbox that can be modified after its creation is an adjustment that slows an increase in shaft speed and a related torque reduction.

Gearbox Materials

Gearboxes may be made from a number of different materials, though the most common type of materials from which they are made are steel-based metals like stainless steel. Other common metal materials from which gearboxes may be made include aluminum, iron and brass. In addition, some types of gears and/or gears with particular shapes, such as spur gears, may be made using less durable materials like nylon or polycarbonate. In the end, what material or material type a manufacturer selects to make a gearbox directly correlates to the performance the manufacturer wishes for the gearbox. For example, more durable materials equip a gearbox with the larger torque reduction capabilities and an ability to resist the power of stronger motors, making the gearbox more durable as well. Less durable materials, for the same reasons in reverse, are best suited in the construction of gearboxes that will be paired with low power motors. Another consideration that manufacturers make when constructing a gearbox is its teeth, as the teeth of a gearbox significantly affect its strength and efficiency. A gearbox with straight teeth, for example, is typically only employed in a low-speed application, while a gearbox with helical teeth, which is much stronger and provides much greater efficiency in terms of torque reduction, is much more likely to be purchased for use with a high-speed application.

Types of Gearboxes

Gearboxes are typically divided into three main categories: manual, automatic and continuously variable. Manual gearboxes, also known as manual transmission or stick-shifts, are gearboxes used in automotive applications that shift with the help of an operator. To shift the gear, said operator will use some sort of lever, such as a clutch, brake pedal, movable gear stick or hand lever. Some manual gearboxes allow a driver to shift to any selected gear at any time, while others restrict their movement at one time to only the gear below or the gear above. Automatic gearboxes or automatic transmission (AT), on the other hand, shift gears without the assistance of an operator. Instead, they, as one might assume, shift automatically based on cues given by the vehicle or system itself. Finally, continuously variable gearboxes or transmission (CVT), which also work automatically, shift through a continuous range of different gear ratios, as opposed to a fixed number of gear ratios. Typically, continuously variable gearboxes are found in snowmobiles, golf carts, small tractors, motor scooters and other small motorized vehicles and utility vehicles. Wind turbines are also gearboxes. Through the very slow rotation of the turbines themselves and the large amount of torque generated therein, wind turbines are able to transfer power to electricity generators, which have much faster rotational speeds and lower torque outputs. Because wind turbines, which may be considered large scale gearboxes, contain many different gears and stages, the electricity generator into which their power goes can still offer consistent output, even when the turbine’s rate of rotation inevitably fluctuates.

Things to Consider When Purchasing Gearboxes

For more information on gearboxes, check out the gear box manufacturers and gear box suppliers listed with IQS Directory. Modify your search below by inputting variables like company type, location and certification to find the right match for you. In addition, to save time, submit your inquiry to all the gear box companies you select by using the Request for Quote tool. All of our partners are experienced and reliable, so don’t hesitate to reach out. Get started today!

Gearbox Informational Video


Why do Replacement Gearboxes Fail?

Why do Replacement Gearboxes Fail? Have you ever replaced a failed gearbox, whether it just wore out after years of faithful service or it crashed and burned as the result of a major jam? Have you ever had said gearbox mysteriously fail again after only a day or a week or a month? Whether you are a user, a distributor who sold it to the user, or an OEM providing service to the user, the situation can be extremely frustrating. Unfortunately the reason for the failure probably wasn’t... Read More About This

Gearhead Quick Select Cheat Sheet Produced

DieQua offers a lot of different gearbox technologies to satisfy servo driven motion control applications, many of which look alike. That can sometimes make it difficult for customers to select the proper product for their particular needs. To aid in narrowing down the model to be considered DieQua has created a quick select cheat sheet highlighting the basic characteristics of our gearhead options. This reference document doesn't help in the selection of a specific part number but rather pinpoints which product group is appropriate for additional investigation. The basic categories... Read More About This

New Plans, Partners, and Products in 2013

DieQua is known for the wide range of gearboxes and similar drive components that we provide for a number of machine design applications. It is through continual innovation in product development and the adjoining of new manufacturing partners that enables us to meet the ever growing needs of the industry. As the new year gets underway, we are in the process of expanding our product offering and increasing the local production of current products, which will reduce leadtimes as well as make these products more cost effective. Two additional product... Read More About This