Bearing Collars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter

	Material Material

	Finish Finish

	Construction Construction


One Piece	Two Piece

Hinged

	For Shaft Type For Shaft Type


Round	Acme Lead Screw

Threaded	D-Profile

Hex	Keyed

Square	Round with Support Rail

	Shaft Mount Type Shaft Mount Type


Clamp On	Set Screw

	OD OD

	Width Width

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	Number of Clamping Screws Included Number of Clamping Screws Included

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Thread Type Thread Type

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Set Screw Material Set Screw Material

Steel

Stainless Steel

	Clamping Screw Finish Clamping Screw Finish

Black Oxide

Zinc Plated

	Number of Set Screws Included Number of Set Screws Included

	Nut Type Nut Type


Locknut	Round

	For Shaft Thread Size For Shaft Thread Size

	Keyway Width Keyway Width

3,242 Products

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.

Clamping Shaft Collars

Able to provide more holding power than set screw collars, these clamp evenly around the shaft to create a mar-free hold—good for applications where vibration is present.

Set Screw Shaft Collars

Keep these shaft collars in place by tightening their set screw into the shaft.

Two-Piece Shaft Collars

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

Bearing Retaining Nuts

Often called shaft nuts, these nuts hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle.

Threaded Shaft Collars

Hex Shaft Collars

D-Profile Shaft Collars

Square Shaft Collars

Install these two-piece collars square shafts.

Quick-Release Shaft Collar Handles

These threaded handles take the place of a set screw, allowing you to move set screw shaft collars without additional tools—useful for when the collar serves as a stroke limiter or mounting clamp.

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.

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.