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Bellows Couplings

A reliable source for Bellows Couplings information and leading Bellows Couplings Companies & Manufacturers.

Typically the bellows are made from stainless steel which is an excellent transmitter of torque. The coupling is made of aluminum which makes these devices exceptionally lightweight and durable. Bronze is also sometimes used. The walls are thin enough to allow the coupling to flex while remaining relatively rigid. Read More…

Bellows Couplings Bellows couplings are connectors for shafts and equipment that require flexibility and non-linear alignment. These devices are composed of a rigid bellow and a coupling that transmits mechanical power between shafts, maintains constant velocity and compensates for axial motion and parallel or angular misalignment.
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Leading Manufacturers

Bloomingdale, IL  |  630-980-1133

Our shaft couplings are the best around! Not only do we provide you with exceptional levels of customer service but we also provide you with manufacturing and a repair service that you can count on. We are also capable of providing you with special designs. That’s right! Our design team will work closely with you in order to ensure that you are getting the product that will fit your specific...

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DieQua Corporation $$$

Belmont, NC  |  704-394-0322

Manufacturing shaft couplings for more than 80 years, Ramsey Products Corporations is a leading supplier for industries. Products we offer include, flexible couplings, flexible shaft couplings, drive shafts, & gear couplings. All our products are backed by our commitment to exceptional customer service & support. We want to be your most outstanding supplier & welcome the opportunity to serve you.

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Ramsey Products Corporation $$$

Erie, PA  |  814-480-5000

Ameridrives Couplings is an international manufacturer of mechanical power transmission products, pioneering many improvements over the years. Complete line of coupling products includes Amerigear gear couplings & spindles, Ameriflex diaphragm couplings, Ameridisc high performance disc couplings & universal joints. We are your single source solution for Driveline Connections.

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Ameridrives Couplings $$$

Mahwah, NJ  |  800-465-6297

Mayr manufactures several variations of backlash-free shaft couplings and other power transmission products. Roba-D is our all-steel flexible coupling. Smartflex is for servo and stepper motors. Roba-DS and Roba-DX are torsionally rigid shaft couplings. Roba-ES provides vibrational damping.

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Mayr Corporation $$$

Arden Hills, MN  |  800-444-2474

Colder Products Company specializes in quick couplings & fittings. Quick connect and disconnect couplings include plastic couplings, medical & food-grade couplings, steam-thru couplings, metal couplings, drum connectors, IdentiQuik™ couplings and more. Complete coupling solutions. To learn more about how we may be able to benefit you; get in touch with our customer service representatives today!

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Colder Products Company $$$
placeholder image DieQua Corporation Ramsey Products Corporation Ameridrives Couplings Mayr Corporation Colder Products Company

Bellows couplings are cylindrical with flexible rings acting as the coupling. On either side are solid metal ends that connect to shafts or other components. They are typically quite short in length and range in diameter size from 1/8 inch to a full inch; custom or specialty sizes are available but do not greatly vary in construction or function. Like shaftwheel couplings, they are constructed to reduce vibration when used in applications with high rotations per minute (rpm). Mostly used in industrial machinery, bellows couplings create a quiet, smooth operation in systems with high levels of torsional integrity like encoder drives, closed loop servo systems, motion control instrumentation, robotics, CNC machine tools and precision positioning.

Cross Slot Bellows Couplings Bellows Couplings - Helical Products Company, Inc.

Mechanical flexible couplings are made of loose fitting parts that move in a sliding and rolling manner; bellows couplings fit this category because they have a coil that allows them to move. Unlike other mechanical flexible shaft couplings, these generally need no lubrication. They offer a near-infinite life span and are virtually maintenance free. Their connection is hidden within the fit-length of the hub, enabling exact transmission of angular motion and torque.

Bellows couplings operate at high speeds anywhere from 12,000 to 32,000 rpm and absorb eccentricity and angularity. They are oil- and chemical-resistant, have thin and lightweight yet strong walls and offer easy and simple mounting and dismounting. Bellows couplings exhibit high torsional stiffness and zero backlash. The most common methods of construction for flexible couplings such as these include electroforming, chemical deposition, mechanical forming and welding.

Electroformed bellows couplings are made by adding layers of metal on a mandrel until the desired thickness is reached and the mandrel is melted away to leave behind the bellows. Chemical deposition is a similar method except that the materials are added by electrodeposition. Mechanical forming includes roll-forming or extrusion. Welded bellows couplings are made by welding a series of rings or washers on both their inside and outside.


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