A strip of flexible spring steel wraps around the teeth of both hubs to absorb sharp, momentary load increases that can come from motor startups, emergency braking, or sudden impact with hard objects. When the shock load hits, the strip of spring steel (known as a grid) flexes to spread out the load. After the load passes, the grid straightens back out. They're commonly found in wire drawing and cutting machines, pulverizers, and mixers. Compared to spider couplings, jaw couplings, and other flexible shaft couplings, these handle higher torque while taking up less space. All have keyed bores to work with keyed shafts, which transmit higher torque with less slippage than round shafts.

A complete coupling consists of two hubs as well as a grid and cover assembly (all sold separately). The grid and cover assembly includes a spring steel grid, aluminum cover, rubber seals, and grease for lubrication. When ordering, please choose components that have the same manufacturer series number, otherwise the grid will not fit.

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Use these gear-shaped couplings for high-speed and high-torque applications. A rubber center allows flexing so couplings can take on multiple types of misalignment while damping vibration and shock. With no metal-to-metal contact, there’s no need for lubrication. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.

A complete coupling consists of two hubs and one center (each component sold separately).

Hubs have a keyway, except hubs for 1/4" and 3/8" shaft dia. do not have a keyway.

For technical drawings and 3-D models, click on a part number.

Made with lightweight nylon sleeves, these gear couplings require less energy to move than other high-torque flexible couplings. They compensate for parallel, angular, and axial misalignment. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.

A complete coupling consists of two hubs and one sleeve (each component sold separately).

For technical drawings and 3-D models, click on a part number.

One end has a finished bore size; the other can be machined to any size—great for connecting to uncommon shaft sizes and shafts that are undersized from wear or oversized from coatings. Slide these couplings onto your shafts and tighten the clamping screws for a secure hold that won’t damage the shafts. All of these couplings are rigid and must be used on aligned shafts. They prevent movement between the shafts, so they can handle high-torque applications.

Couplings for keyed shafts have keyways that firmly grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.

Steel couplings are a good option in dry environments.

303 stainless steel couplings resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.

For technical drawings and 3-D models, click on a part number.