Mountable Shaft Collars | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter

	Material Material

Steel

Stainless Steel

Aluminum

	For Shaft Type For Shaft Type

	Round
	Keyed

	Construction Construction


One Piece	Two Piece

	OD OD

	Width Width

	Clamping Screw Material Clamping Screw Material

Steel

Stainless Steel

	Number of Clamping Screws Included Number of Clamping Screws Included

	Mounting Hole Thread Size Mounting Hole Thread Size

	Number of Mounting Holes Number of Mounting Holes

	Keyway Width Keyway Width

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

REACH Compliant

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

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

	Flange OD Flange OD

	Mounting Hole Diameter Mounting Hole Diameter

	Keyway Depth Keyway Depth

	Flange Thickness Flange Thickness

	Mounting Hole Thread Pitch Mounting Hole Thread Pitch

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

284 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.

Flange-Mount Shaft Collars

Three tapped counterbored holes and three through-holes provide mounting flexibility.

Face-Mount Shaft Collars

Two tapped holes on the face of these collars allow you to fasten them to gears, pulleys, and sprockets.

Machinable-Face Shaft Collars

These collars have two different sides—one locks down like a standard clamping shaft collar; the other has a flush face that you can machine to add slots, holes, and grooves to match your special setups.

Top-and-Bottom Mount Two-Piece Shaft Collars

Secure items to either side of these collars—each half has a flat end with a tapped hole

Top-and-Bottom Mount Shaft Collars

Mount these collars flush against each other or attach components to either side—the round body has flattened ends with tapped holes.

Weldable Two-Piece Shaft Collars

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

Weldable Shaft Collars

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