Couplings for 2" Shafts | McMaster-Carr

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System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

10 mm

11 mm

12 mm

12.500 mm to 40.000 mm

Shaft Type

Construction

For Shaft Misalignment Type

Keyway Width

Material

Viton® Fluoroelastomer

Maximum Torque

Less than 10,000 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf to 39,999 in·lbf

Shaft Mount Type

Overall Length

Keyway Depth

For Rotary Motion

Maximum Rotation Speed

Length

Number of Set Screws Included

Shaft Coupling Flexibility

Set Screw Material

Number of Teeth

Component

Hub

Split Spider

Number of Clamping Screws Included

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

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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110 Products

Flexible Shaft Couplings

High-Torque Set Screw Flexible Shaft Couplings

Take on twice as much torque as standard split spiders while a set screw holds hubs in place

10 products

Set Screw Flexible Shaft Couplings

A set screw bites into your shaft to hold the coupling in place

6 products

Flexible Shaft Couplings for Continuous Motion

High-Speed Vibration-Damping Flexible Shaft Couplings

Gear-shaped for high-speed and high-torque applications

6 products

High-Torque Flexible Shaft Couplings

A rugged roller‑chain design for excellent torque and angular misalignment capacity

3 products

Ultra-High-Torque Flexible Shaft Couplings

The rigid steel gear design transmits more torque than other couplings

6 products

Other Products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

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Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

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Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

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Rigid Shaft Coupling Covers

Shield rigid shaft couplings from dirt, water, and lubricants to extend their life

1 product

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

2 products