Flexible Couplings | McMaster-Carr

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System of Measurement

Shaft Diameter

7/16" to 1 1/8"

7/16" to 1 3/16"

Shaft Type

Material

Stainless Steel

Construction

Overall Length

OD

For Shaft Misalignment Type

No Misalignment

Shaft Mount Type

Keyway Width

For Rotary Motion

Forward/Reverse

Length

Component

Split Spider Cover

Pipe Size

Flexible Shaft Coupling Type

Maximum Rotation Speed

Keyway Depth

Fitting Type

Expansion Joint

Reducing Adapter

Shaft Coupling Flexibility

Flexible Shaft Coupling Cut Style

Maximum Torque

Less than 1,000 in·lbf

1,000 in·lbf to 9,999 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf or greater

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

How can we improve?

2,374 Products

Flexible Shaft Couplings

Precision Beam Couplings

Precision Beam Couplings

Slits on the one-piece body flex to help transfer full torque and compensate for tiny misalignments

Spider Couplings

Spider Couplings

A rubbery center fits between hubs to enable torque transfer and damp vibration

Precision Spider Couplings

Precision Spider Couplings

Position shafts on motors, pumps, and other equipment that requires highly controlled movements

High-Torque Spider Couplings

High-Torque Spider Couplings

A thicker split spider helps transmit higher torque than standard split spider couplings

Servomotor Precision Disc Couplings

Servomotor Precision Disc Couplings

Withstand high torque from starts, stops, and reversals in high-performance servomotor setups

High-Axial-Misalignment Sleeve Couplings

High-Axial-Misalignment Sleeve Couplings

A gear-shaped sleeve helps withstand high axial misalignment and damp vibration

Precision Bellows Couplings

Precision Bellows Couplings

A thin-walled, corrugated-metal center tube flexes to handle all types of misalignment

High-Parallel-and-Angular-Misalignment Precision Double Loop Couplings

High-Parallel-and-Angular-Misalignment Precision Double Loop Couplings

Offset hubs compensate for high parallel and angular misalignment

Sleeve Couplings

Sleeve Couplings

More lightweight than other sleeve couplings to reduce energy consumption

High-Angular-Misalignment Flex Disc Couplings

High-Angular-Misalignment Flex Disc Couplings

A flexible disc helps transfer torque smoothly in assemblies with tilting shafts

High-Parallel-Misalignment Slotted Disc Couplings

High-Parallel-Misalignment Slotted Disc Couplings

Handle parallel misalignment by allowing shafts to slide independently

Servomotor Precision Bonded Couplings

Servomotor Precision Bonded Couplings

A bonded rubber center damps vibration and allows high angular misalignment

High-Torque Chain Couplings

High-Torque Chain Couplings

A roller chain locks onto teeth on the hubs to withstand high torque

Torque-Limiting Shear Couplings

Torque-Limiting Shear Couplings

When torque is too high, sever the connection between shafts so connected parts don't break

Shock-Absorbing Grid Couplings

Shock-Absorbing Grid Couplings

Flexible spring steel absorbs sudden load increases from starts, stops, and reversals

High-Misalignment Tire Couplings

High-Misalignment Tire Couplings

Handle the highest misalignment of any coupling while reducing vibration

Electrically Isolating Servomotor Precision Disc Couplings

Electrically Isolating Servomotor Precision Disc Couplings

Block stray current so it doesn't erode or interfere with components on your shaft

High-Torque Sleeve Couplings

High-Torque Sleeve Couplings

A steel sleeve and hubs help transmit higher torque than other sleeve couplings

Non-Contact Magnetic Couplings

Non-Contact Magnetic Couplings

Magnetic hubs compensate for misalignment by transferring torque without wear or contact

Cleaned and Bagged Slotted Disc Couplings

Cleaned and Bagged Slotted Disc Couplings

Prevent contamination in electronics plants and other extra-clean environments

Splined-to-Keyed Spider Couplings

Splined-to-Keyed Spider Couplings

Connect splined shafts with keyed ones, such as shafts on a hydraulic pump and an electric motor

Other Products

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Pipe Expansion Joints

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Flexible Shafts

Flexible Shafts

Snake around curves and obstructions to transmit rotary motion along any path

Torque Limiters

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

Mechanical Control Cables

Mechanical Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)