McMaster-Carr

Customize the bore of these flexible couplings to align uncommon shaft sizes as well as shafts that have become undersized from wear or oversized from coatings.

High-Angular-Misalignment
Flexible Shaft Couplings

Also known as Schmidt couplings, these handle higher angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they're commonly used with conveyor rollers and roller feeds in printing and packaging machines.

Metal-Detector-Grade
Flexible Shaft Couplings

Designed for use in food-processing applications, where a fraying spider could contaminate a batch, these couplings have a metal-detector-grade rubber spider. Small pieces of metal inside the rubber will set off a metal detector, alerting you to the problem.

Shock-Absorbing
Flexible Shaft Couplings

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.

Clamping Vibration-Damping
Precision Flexible Shaft Couplings

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft.

Set Screw Vibration-Damping
Precision Flexible Shaft Couplings

Each hub includes a set screw, which bites into your shaft to hold the coupling in place.

High-Torque Flexible Shaft Couplings

With a rugged roller-chain design, these couplings provide excellent torque and angular misalignment capacities.

High-Speed Vibration-Damping
Flexible Shaft Couplings

Use these gear-shaped couplings for high-speed and high-torque applications.

Vibration-Damping
Flexible Shaft Couplings

A flexible tire on these couplings safeguards components on your shafts by reducing vibration and shock.

Splined Flexible Shaft Couplings

For use with splined shafts, which are commonly found in gearboxes and pumps, these couplings are capable of transmitting more torque than couplings for round and keyed shafts.

Splined-to-Keyed Flexible Shaft Couplings

Splined-to-Keyed
Flexible Shaft Couplings

Connect splined shafts to keyed shafts. These couplings are commonly used to connect hydraulic pumps, compressors, and other heavy duty equipment, which often have splined shafts, to electric motors and other components that often have keyed shafts.

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About Shaft Couplings

Flexible Shaft Couplings

Set Screw Flexible Shaft Couplings

Clamping Flexible Shaft Couplings

High-Torque Set ScrewFlexible Shaft Couplings

Clamping High-Parallel-MisalignmentFlexible Shaft Couplings

Set Screw High-Parallel-MisalignmentFlexible Shaft Couplings

Machinable-BoreFlexible Shaft Couplings

High-Angular-MisalignmentFlexible Shaft Couplings

Metal-Detector-GradeFlexible Shaft Couplings

Shock-AbsorbingFlexible Shaft Couplings

Clamping Vibration-DampingPrecision Flexible Shaft Couplings

Set Screw Vibration-DampingPrecision Flexible Shaft Couplings

High-Torque Flexible Shaft Couplings

High-Speed Vibration-DampingFlexible Shaft Couplings

Vibration-DampingFlexible Shaft Couplings

Splined Flexible Shaft Couplings

Splined Flexible Shaft Couplings

Splined-to-Keyed Flexible Shaft Couplings

Splined-to-KeyedFlexible Shaft Couplings

High-Torque Set Screw
Flexible Shaft Couplings

Clamping High-Parallel-Misalignment
Flexible Shaft Couplings

Set Screw High-Parallel-Misalignment
Flexible Shaft Couplings

Machinable-Bore
Flexible Shaft Couplings

High-Angular-Misalignment
Flexible Shaft Couplings

Metal-Detector-Grade
Flexible Shaft Couplings

Shock-Absorbing
Flexible Shaft Couplings

Clamping Vibration-Damping
Precision Flexible Shaft Couplings

Set Screw Vibration-Damping
Precision Flexible Shaft Couplings

High-Speed Vibration-Damping
Flexible Shaft Couplings

Vibration-Damping
Flexible Shaft Couplings

Splined-to-Keyed
Flexible Shaft Couplings