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Jaw Couplings

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

Jaw couplings are resistant to oil, dirt, grease, sand and moisture and do not require any lubrication. One drawback of jaw couplings is that they lack misalignment capability. Unlike a bellows coupling which is flexible, jaw couplings will come apart if the axial motion is too great. Read More…

Jaw Couplings Jaw couplings are a type of compression coupling that control motion by transmitting torque and dampening vibrations that could cause damage to other system components. They are composed of a polyurethane-based elastomeric part called a spider that joins two hubs made of sintered metal, aluminum, standard steel, stainless steel, bronze or iron. These three parts are press fitted together with a jaw from each hub fitting into the elastomeric element's grooves.
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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 requirements perfectly! Call or email us today for more information!

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DieQua Corporation $$$

Mentor, OH  |  800-542-6552

Climax Metal Products Co. specializes in the manufacture of shaft collars and rigid couplings. Our rigid couplings and shaft collars are presented as one- or two-piece types, plus set screw and metric offerings. We can customize our products for you. We are ISO 9001 certified. Contact us for your needs.

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Climax Metal Products Company $$$

South Haven, MI  |  231-879-3372

Niche shaft couplings manufacturer System Components offers a combination of highly specialized automotive expertise, skilled engineering & unbeatable prices. Let our team of engineers & service representatives help you find universal joints, spicer u joints, cardan joints & custom power transmission components made with CNC machining & high-grade steel.

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System Components, Inc. $$$

Tuckahoe, NY  |  914-961-2000

Stoffel Polygon Systems manufactures precision polygon drive connections and other mechanical parts. Whether for prototype or production we will engineer a part to match your needs and specifications. Polygon systems offer the highest torque carrying capacity of any drive connection and ours are made from high quality materials to ensure smooth movement, reduced backlash and many other benefits.

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Stoffel Polygon Systems, Inc. $$$

Mount Prospect, IL  |  888-426-7117

Gam Enterprises is a distributor of Jakob torsion-resistant precision couplings and safety couplings for servo drive applications. We also manufacture shaft couplings, gear couplings and rigid shaft couplings. What sets us apart from our competitors is our flexibility in making sure all of our customers' needs are met. Contact Gam today for more information.

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Gam Enterprises, Inc. $$$
placeholder image DieQua Corporation Climax Metal Products Company System Components, Inc. Stoffel Polygon Systems, Inc. Gam Enterprises, Inc.

Angular or parallel misalignment can cause it to bear loads that are higher than other similar couplings. Jaw couplings have the basic shape of a gear but are in fact quite different from gear couplings.

Jaw couplings do not use the large blunt teeth to move or rotate as would be the case in a set of gears. Instead they provide interlocking action for the spider and hub, keeping the assembly together while providing effective vibration dampening. Jaw couplings are used as motor couplings for pumps, gear boxes, compressors, blowers, mixers and conveyers for industrial manufacturing applications.

Jaw In-Shear Coupling Jaw Couplings - Lovejoy, Inc.

The elastomeric element is often referred to as a spider because of its shape-circular with an even number of legs jutting out. It serves to dampen impulse loads and minimize shock to a motor. The polyurethane used can be either soft, which provides better vibration dampening, or hard, which gives the spider more strength. The elastomeric material that the spider is made out of is available in different degrees of hardness which gives the operator more control over how much vibration the coupling absorbs.

It can be customized to the specific application. The hubs have curved jaws that interlock and reduce deformation of the spider which prevents backlash. These couplings are considered fail safe because if the spider malfunctions, the jaws of the two hubs interlock and create direct power transmission so the vehicle can shut down safely. Jaw couplings perform the best for applications that use a stop-and-go type of movement that also require accuracy.

Varying amounts of vibration absorption have a direct effect on the length of settling time where the system pauses briefly to perform an action or movement quickly and precisely. If vibrations are mostly absorbed then the system does not have to hesitate before performing an action which increases the speed of the line. Jaw couplings are accurate while still; they are not optimal for applications in which precise movements are required during movement.

Jaw Couplings Informational Video

 
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