McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter

1/8" to 3/4"

0.235" to 0.500"

0.235" to 0.625"

0.235" to 0.750"

0.235" to 0.875"

1/4"

1/4" to 3/4"

5/16"

0.360" to 1.000"

0.360" to 1.125"

0.360" to 1.250"

0.360" to 1.375"

3/8"

7/16"

0.485" to 1.500"

0.485" to 1.750"

0.485" to 2.000"

1/2" to 1"

5/8" to 1 9/16"

3/4" to 1 1/2"

3/4" to 2"

13/16"

7/8"

15/16"

1" to 2"

1" to 2 5/8"

1 1/4" to 3"

6.000 to 8.000mm

6.000 to 10.000mm

6.000 to 12.000mm

6.000 to 16.000mm

6.000 to 20.000mm

7mm

8mm

9mm

9.500 to 25.000mm

9.500 to 30.000mm

9.500 to 35.000mm

10mm

11mm

12mm

12.500 to 40.000mm

12.500 to 45.000mm

12.500 to 50.000mm

	Material Material

	Finish Finish

	Construction Construction


One Piece	Two Piece

Three Piece	Hinged

	For Shaft Type For Shaft Type


Round	Keyed

Threaded	Square

D-Profile	Hex

Round with Support Rail	Acme Lead Screw

Spline

	Shaft Mount Type Shaft Mount Type


Clamp On	Set Screw

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	OD OD

	Width Width

15/32"-11/16"

3/4"-1 1/16"

7/8"-1 1/4"

1"-1 7/16"

1 1/8"-1 1/2"

1 3/16"-1 9/16"

1 3/8"-1 7/8"

1 1/2"-2"

1 5/8"-2 1/4"

1 3/4"-2 1/2"

	Number of Clamping Screws Included Number of Clamping Screws Included

	Clamping Screw Type Clamping Screw Type

Socket Head Screw

Cap Screw

	Set Screw Material Set Screw Material

Steel

Stainless Steel

	Number of Set Screws Included Number of Set Screws Included

	For Motion Type For Motion Type

Continuous

Forward/Reverse

Start/Stop

	Thread Size Thread Size

	For Shaft Thread Size For Shaft Thread Size

	Keyway Width Keyway Width

	For Shaft Width For Shaft Width

	Keyway Depth Keyway Depth

	Flat-to-Flat Height Flat-to-Flat Height

	Color Color

	White
	Gray
	Blue

	Overall Length Overall Length

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About Shaft Collars

Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.

Shaft Collars

Hold and position components on a shaft. Collars can also serve as mechanical stops and stroke limiters.

Shaft Connectors

Couplings, universal joints, and flexible shafts connect two shafts together and transfer torque from one to the other.

Lead Screw Collars

Install these threaded collars on a lead screw to separate and position components, or use them as an end stop to limit travel.

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About Shaft Collars

Power Transmission

Shaft Collars

Shaft Connectors

Lead Screw Collars