Clamp-On Collars | 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"

1/2" to 1"

5/8" to 1 9/16"

3/4" to 2"

1" to 2 5/8"

1 1/4" to 3"

2" to 4 1/4"

2 1/2" to 5"

3" to 6"

	Construction Construction


Two Piece	One Piece

Hinged

	Material Material

	Finish Finish

	For Shaft Type For Shaft Type


Round	Threaded

Keyed	Hex

Round with Support Rail	D-Profile

Square	Acme Lead Screw

	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"

	OD OD

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	Number of Clamping Screws Included Number of Clamping Screws Included

	Clamping Screw Finish Clamping Screw Finish

Black Oxide

Zinc Plated

	For Shaft Thread Size For Shaft Thread Size

	Keyway Width Keyway Width

	Number of Mounting Holes Number of Mounting Holes

	Mounting Hole Thread Size Mounting Hole Thread Size

4-40
6-32
8-32
10-24
10-32
1/4"-20
1/4"-28
5/16"-18

5/16"-24

3/8"-16

	Lever Material Lever Material

Zinc

Aluminum

	Keyway Depth Keyway Depth

	Lever Height Lever Height

	Lever Length Lever Length

	For Shaft Width For Shaft Width

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

	Thread Size Thread Size

	Mounting Hole Thread Pitch Mounting Hole Thread Pitch

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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.

Two-Piece Shaft Collars

Install anywhere on a shaft without removing components or having access to the ends of the shaft.

Shaft Collars

To install, slide these one-piece collars onto the end of your shaft.

Hinged Shaft Collars

Offering the benefits of a two-piece collar in a one-piece design, these collars swing open for positioning then close anywhere on your shaft.

Mountable Shaft Collars

Mounting holes or weldable materials allow you to fasten gears, pulleys, and sprockets to these collars.

Threaded Shaft Collars

Hex Shaft Collars

Support-Rail Shaft Collars

Designed to fit onto shafts that have a support rail running underneath them, these collars can be used as end-stops for linear motion components.

D-Profile Shaft Collars

Square Shaft Collars

Install these two-piece collars square shafts.

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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