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Gear Coupling Manufacturers and Companies

IQS Directory is a top industrial directory listing of leading industrial gear coupling manufacturers and suppliers. Access our comprehensive index to review and source gear coupling manufacturers with preview ads and detailed product descriptions. These gear coupling companies can design, engineer and manufacture gear couplings to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these gear coupling 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 gear coupling teeth, gear coupling torque, flexible gear coupling.

  • Bloomingdale, IL 630-980-1133

    We are able to provide you with services and products that the competition can’t. We promise that our gear couplings are among the best products we offer. All of our products go through rigorous testing before even leaving our facilities in order to ensure that we are bringing you only the best. Our levels of customer service are unparalleled and we aim to please! Send us an email with your questions and concerns today or come and visit our website.

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  • Bartlett, IL 888-534-1222

    Wittenstein, formerly known as Alpha Gear Drives, is known worldwide for its research, development, production and sales of high-precision planetary gear reducers and motion control systems. For 25 years we have been a speed reducer manufacturer of right angle gear boxes, worm gearboxes, servo worm gear speed reducers, high precision rack and pinion, linear actuators and rotary servo actuators.

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  • Santa Maria, CA 877-353-9873

    Helical Products was conceived in 1958 when George Sabadash developed the concept and method of producing the HELI-CAL Flexure as a single piece flexible coupling/coupler. In addition to our standard shaft couplings, we can design and manufacture special or custom couplings to meet your requirements that exceed the capabilities of our standard lines. A consultation with our Helical factory engineers is at "no charge." We urge you to use this service or call the Helical representative near you.

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  • Wilmington, MA 800-695-5551

    Since 1975, Stafford has been your super source for superior shaft couplings and has grown and developed to be much more, providing a wide assortment of components for power transmission, motion control and other applications. Stafford has the industry-leading capabilities for custom manufacturing, so let its experienced professionals put their experience and expertise to work for you.

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  • Morristown, TN 800-251-9012

    Renold Jeffrey is an international manufacturer and distributor of engineering products. Our history and experience dates back to 1864 and our tradition of quality continues. All of the items in our large product line are engineered for precision and performance including our roller and conveyor chains, gearboxes, flexible shaft couplings, material handlers and freewheels among many others.

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businessIndustry Information

View A Video on Gear Couplings - A Quick Introduction

Gear Coupling

Gear couplings connect two shafts together through interlocking teeth that transmit power, absorb vibration and allow for slight angular displacement. Gear couplings transport torque between two shafts that are not coaxial or collinear. Each shaft consists of a flexible joint, which is fixed to the shaft. The joints of the shafts are connected by a spindle, a third shaft.

Gear couplings offer efficient torque transmission in a compact mechanism and permit a high degree of axial movement. However, gear couplings require piloting and may malfunction at very high or very low torques. Crowned tooth flanks allow angular displacement to occur between each gear. Two coaxial shafts can also be connected by a single joint gear coupling, known as a gear-type flexible or flexible coupling. Slight misalignments of 0.5° to 5° are tolerated by this type of gear coupling. Gear couplings and universal joints are used in similar applications, most predominantly in the automobile industry. While gear couplings have higher torque density, universal joints induce lower vibration than gear couplings. The gear teeth in a gear coupling have high backlash, which can contribute to vibration, to allow for angular misalignment. Gear couplings are found in all rear-wheel and four-wheel driven passenger cars.


In a gear coupling, the two shafts being joined meet in the third shaft which contains gears. The teeth interlock with each other to rotate and, in doing so, they transfer torque, power and energy. Every gear coupling has differing stall speeds, which is the highest speed that the gears can turn when maximum input power is applied. Flexible shaft couplings such as gear couplings are necessary because during operation, some types of shafts tend to shift, causing misalignment. Shaft movement is caused by bumps or vibration and it results in parallel, angular or skewed shaft misalignment. Flexible shaft couplings provide efficient accommodation for moderate shaft misalignment that occurs when the shafts' axes of rotation become skewed. There are many different kinds of shaft couplings. The bellows coupling has two hubs and a thin walled metallic bellows and can accommodate all three types of misalignment. Single beam couplings are usually made of a single piece of aluminum and have a system of spiral cuts that allow it to bend in order to accommodate angular misalignment. Multiple beam couplings consist of two to three overlapping beams that address problems of torsional rigidity. The Oldham coupling consists of three components: two hubs and a central plastic disk. It accommodates slight parallel misalignment, while providing almost zero backlash.



Gear Couplings
Gear Couplings
Gear Couplings - Lovejoy, Inc.
Gear Couplings - Lovejoy, Inc.


Gear Couplings Informational Video