Bearing Spacers | McMaster-Carr

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System of Measurement

Thickness

Material

Length

Shape

Drill Bit Size

Screw Size

Shaft Diameter

Installation Permanence

Permanent

Removable

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Compliant

Exempt

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

For Drill Bit Size Decimal Equivalent

Performance

Electrically Insulating

Shoulder Diameter

Thread Size

Shaft Type

Drill Bushing Texture

Minimum Hardness

Drill Bushing Type

Magnetic Properties

May Be Mildly Magnetic

Nonmagnetic

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7,016 Products

Shims

Round Shims

Shims

Razor-thin tolerances for precise aligning, spacing, and leveling

1,949 products

Shims for Shortening Screw Shoulders

Pare down the shoulder on shoulder screws to tighten the hold on components

223 products

Shims for Lengthening Screw Shoulders

When shoulders come up short, extend the shoulder length on your screw

109 products

Shims for Dies

Restore your die to its original height for clean cuts in metal stamping

31 products

Shims for Ball Bearing Outer Rings

Spread load between multiple bearings to boost their efficiency on shafts

20 products

Wide-Rim Shims

Spread loads across a wider surface area than standard shims to minimize wear between components

172 products

Shims for Ball Bearing Housings

Secure bearings in stamped, molded, or worn housings

33 products

Shim Assortments

Keep multiple shim thicknesses on hand for precise aligning, spacing, and leveling

36 products

Shims for Keyed Shafts

Notched or tabbed to fit keyed shafts with or without a key inserted

182 products

Peel-Away Multilayer Shims

Peel off the layers until you reach your desired thickness

43 products

Shim Assortments for Shortening Screw Shoulders

Customize your shoulder lengths by keeping multiple shoulder-shortening shim sizes on hand

1 product

Shim Assortments for Keyed Shafts

Keep multiple shim thicknesses on hand for keyed shafts and arbors that have a key inserted

12 products

Shim Assortments for Lengthening Screw Shoulders

Customize your shoulder lengths by keeping multiple shoulder-lengthening shim sizes on hand

2 products

Shim Assortments for Dies

Keep a variety of shim ODs on hand to fit various die sizes

1 product

Other Products

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

3,936 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

20 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

34 products