Wheel Collars | McMaster-Carr

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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.

Set Screw Shaft Collars

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

Washdown Set Screw Shaft Collars

Made of chemical-resistant nylon, these collars are suitable for washdown applications.

Clamping Shaft Collars

These metal collars are stronger than plastic shaft collars.

Machinable-Bore Clamping Shaft Collars

Customize the bore of these collars to precisely fit your shaft.

Washdown Clamping Shaft Collars

Suitable for use in washdown applications, these plastic collars also offer good chemical resistance.

Extra-Grip Clamping Shaft Collars

With larger clamping screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws.

Quick-Release Clamping Shaft Collars

Installing and removing a collar is as easy as pushing down and lifting up a clamp lever.

Counterbalanced Clamping Shaft Collars

Formed to offset the weight of the clamping screw, these collars won't wobble or vibrate when shafts are spinning—even at high speeds.

Tight-Hold Quick-Release Clamping Shaft Collars

A threaded lever lets you tighten these collars with more torque than other quick-release styles, ensuring that they stay put on your shaft.

Quick-Connect Clamping Shaft Collars

Internal ball bearings allow you to slide a collar onto your shaft in one direction and then automatically lock the collar in place in the opposite direction.

Clamping Shaft Collars with Precision-Ground Face

One side of these collars locks down like a standard one-piece shaft collar; the other has a flush face that's flat to 0.0005", which lets you mount the collars on a shaft next to precision bearings, sprockets, and gears.

Ultra-Grip Clamping Shaft Collars

An embedded sleeve squeezes the shaft as you tighten the clamping screws, allowing these collars to handle up to three times the thrust load of standard collars.

Extra-Wide Clamping Shaft Collars

Wider than standard shaft collars with twice the number of clamping screws, these ensure a better grip for greater holding power.

Precision Adjustable-Width Clamping Shaft Collars

Two knurled sides provide micrometer-like movement for precise width adjustments.

Clamping Two-Piece Shaft Collars

These metal collars are stronger than plastic shaft collars.

Machinable-Bore Clamping Two-Piece Shaft Collars

Customize the bore of these collars to precisely fit your shaft.

Washdown Clamping Two-Piece Shaft Collars

Suitable for use in washdown applications, these plastic collars also offer good chemical resistance.

Extra-Grip Clamping Two-Piece Shaft Collars

With larger screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws.

Clamping Two-Piece Shaft
Collars with Wrench Flats

Use a wrench to rotate your drive shaft without marring or gouging the shaft.

Inch-to-Metric Clamping Two-Piece Shaft Collars

Although these collars fit inch-sized shafts, they have a metric OD and width for use with metric equipment.

Quick-Release Two-Piece Clamping Shaft Collars

Make quick adjustments to these shaft collars with a lever on the side.

Extra-Wide Clamping Two-Piece Shaft Collars

Wider than standard shaft collars with twice the number of clamping screws, these ensure a better grip for greater holding power.

Set Screw Two-Piece Shaft Collars

Tighten the set screw to bite into an unhardened shaft for a secure hold.

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.

Flange-Mount Shaft Collars

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

Weldable Shaft Collars

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

Weldable Two-Piece Shaft Collars

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

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.