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Fluid Coupling Manufacturers and Companies

IQS Directory provides a detailed list of fluid coupling manufacturers and suppliers. Find fluid coupling companies that can design, engineer, and manufacture fluid couplings to your specifications. Peruse our website to review and discover top fluid coupling manufacturers with roll over ads and complete product descriptions. Connect with the fluid coupling companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of hydrodynamic couplings, hydraulic fluids, and rotary fluid couplings of every type, IQS is the premier source for you.

  • Bloomingdale, IL 630-980-1133

    Since opening our doors in 1980 we have been offering products that provide full satisfaction for our customers. We guarantee fluid couplings that will last a lifetime! Allow our qualified staff to bring to you unmatched customer service. We know it’s important to stay up on new technological innovations; this is why we have our own research and development department working constantly to keep us on the leading edge. Get in touch with us via phone or email today to find out more!

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  • Freeport, NY 888-260-7466

    When it comes to excellent fluid coupling products, Ondrives.US is able to bring you a fully customizable experience in order to ensure that your product will suit your application’s most demanding requirements. We are an ISO 9001:2015 certified industry leader that stresses great customer service, because without our clients we wouldn’t be where we are today. Contact our representatives to learn more information today!

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  • Hillside, IL 708-344-4600

    Belden is a precision manufacturer of universal joints and power transmission components for both custom and standard applications. Delivering high-performance solutions to a vast number of industries is what we do. Download our catalog or submit an RFQ on-line at www.BeldenUniversal.com today.

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  • Niles, IL 847-588-2639

    Since 1965, Candy Manufacturing Company has built a respected name in the printing, packaging and converting industries as a provider of innovative rotary motion control products. Turn to us for top of the line solutions that come at a very affordable price. We look forward to working with your business!

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  • Davison, MI 810-503-9000

    Fernco offers engineering, prototype and production services. Our team of experts provides on-time, cost effective injection molding and assembly in rigid and flexible PVC. We offer a range of specialty polymers for flexible and shield couplings as well as o-rings and plumbing components. With full CAD-CAM capabilities, concept drawings, complete tooling and manufacturing, be sure to contact us.

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View A Video on Fluid Couplings - A Quick Introduction

Fluid Coupling

Fluid couplings are hydrodynamic devices that transmit rotation between shafts by acceleration and deceleration of hydraulic fluid. Shafts are used industrially to provide rotary motion to a wide spectrum of vehicles and equipment and shaft couplings are key to providing secure rigid, flexible or non-linear connection between shafts, wheels and rotary equipment.

Fluid couplings consist of a housing containing an impeller on the input or driving shaft and a runner on the output shaft. Both of these contain a fluid which is usually oil that is added to the coupling through a filling plug on the housing. The impeller, which acts as a pump, and the runner, which acts as a turbine, are both bladed rotors. The components of fluid couplings are generally made out of metallic materials-aluminum, steel or stainless steel. Fluid couplings are used in the automotive, railroad, aerospace, marine and mining industries. They are used in the transmissions of automobiles as an alternative to mechanical clutches. Forklifts, cranes, pumps of all kinds, mining machinery, diesel trains, aircrafts and rotationally-powered industrial machinery all use fluid coupling when an application requires variable speed operation and a startup without shock loading the system. Manufacturers utilize these couplings to connect rotary equipment such as drive shafts, line shafts, generators, wheels, pumps and turbines in a variety of automotive, oil and gas, aerospace, water and waste treatment and construction industries.


In a fluid coupling, the impeller and rotor are both bowl-shaped and have many radial vanes. They face each other but unlike gear couplings have no mechanical interconnection and never touch. Fluid is directed by the pump into the impeller. The driving turbine or pump is rotated by an internal combustion engine or electric motor imparting both linear and rotational motion to the fluid. The velocity and energy is transferred to the fluid when the impeller rotates. It is then converted into mechanical energy in the rotor. Every fluid coupling has differing stall speeds, which is the highest speed that the pump can turn when the runner is locked and maximum input power is applied. Slipping always occurs because the input and output angular velocities are identical, and therefore the coupling cannot reach full power efficiency-some of it will always be lost in the fluid friction and turbulence. Flexible shaft couplings such as fluid couplings are necessary because during operation, some types of shafts tend to shift, causing misalignment. Flexible couplings provide efficient accommodation for moderate shaft misalignment that occurs when the shafts' axes of rotation become skewed. Shaft movement is caused by bumps or vibration and it results in parallel, angular or skewed shaft misalignment.



Fluid Coupling
Fluid Coupling
Fluid Coupling - Elbe & Sohn Inc.
Fluid Coupling - Elbe & Sohn Inc.