Arbor Shims | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Thickness Thickness

	Material Material

	Shape Shape


Ring	Keyed

D-Profile

	Individual/Set Individual/Set

Individual

Set

	Magnetic Properties Magnetic Properties

Magnetic

May Be Mildly Magnetic

Nonmagnetic

	Minimum Hardness Minimum Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Specifications Met Specifications Met

	For Screw Size For Screw Size

	For Shoulder Diameter For Shoulder Diameter

	For Shaft Diameter For Shaft Diameter

	Keyed Shim Type Keyed Shim Type


With Notch	With Tab

	Notch Width Notch Width

	Color Color

	White		Red
	Beige		Amber
	Purple		Blue
	Black		Coral
	Brown		Green
	Yellow		Gray
	Pink

	Notch Depth Notch Depth

	For Bearing ID For Bearing ID

	Number of Pieces Number of Pieces

	Overall Length Overall Length

	For Bearing OD For Bearing OD

	Maximum Temperature Maximum Temperature

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Round Shims

Ring Shims

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Ring Shim Sets

Be prepared with ring shims in a variety of thicknesses. These shims fit around fasteners and shafts to precisely align, level, and adjust spacing.

Wide-Rim Ring Shims

Also known as machinery bushings, these shims have an oversized OD to create a larger bearing surface for reduced wear between moving parts.

Color-Coded Ring Shims

Precisely align, level, and adjust spacing on fasteners, shafts, and machinery with these shims, which are color-coded by thickness for easy identification.

Color-Coded Ring Shim Sets

Be prepared with ring shims in a variety of thicknesses. These shims are color-coded by thickness for easy identification.

Tight-Fit Ring Shims

For a snug fit around a shaft, the ID of these shims is held to a tighter tolerance than other round shims.

Peel-Away Layered Ring Shims

These shims are made of layers of metal bonded with adhesive. Remove layers with a utility knife until you get the thickness you need.

Shims for Keyed Shafts

Precisely shaped to fit snugly on keyed shafts, these shims align, level, and space components. Because of their tight fit, they also help components rotate in unison with the shaft.

Shim Sets for Keyed Shafts

Be prepared with shims in a variety of thicknesses. Also known as arbor spacers, these shims are notched to fit over keyed shafts.

Shims for Shortening Screw Shoulders

Slide these shims under the screw head to shorten the shoulder length.

Shims for Lengthening Screw Shoulders

Spin these shims onto screw threads to extend the shoulder length.

Shims for Ball Bearings

Adjust spacing between bearings and other components on shafts. These shims are sized to fit the outer rim of a bearing.

Shims for D-Profile Shafts

These shims are shaped to fit over D-profile shafts. Use them to precisely align, level, and adjust spacing.

Shim Sets for D-Profile Shafts

Be prepared with shims in a variety of thicknesses. These shims are shaped to fit over D-profile shafts. Use them to precisely align, level, and adjust spacing.

Shims for Button Dies

Place these shims under sharpened dies to restore their original height and extend their life.

Ring Shim Assortments

Shim Assortments for Button Dies

Place these shims under sharpened dies to restore their original height and extend the life of the dies.

Ring Shim Assortments

Use round shims to precisely align, level, and adjust spacing on shafts and machinery.

Shim Assortments for Shortening Shoulder Screws

Slide onto a shoulder screw to shorten the length of the shoulder.

Shim Assortments for Lengthening Shoulder Screws

Spin these tight-fitting shims onto your screw's threads to lengthen the shoulder.

Unthreaded Spacers for Keyed Shafts

Also known as arbor spacers, these are notched to space components on a keyed shaft.

Shims for Keyway Broaches

When broaching in multiple passes, shims are necessary to ensure full keyway depth.