Bearing Spacers | McMaster-Carr

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6,490 Products

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.

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.

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.

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.

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.

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 Ball Bearing Housings

Also called tolerance rings, these rings are for use in stamped, molded, or worn housings to form a tight hold on the bearings.

Shims for Button Dies

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

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 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.

Unthreaded Spacers for Keyed Shafts

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

Ring Shim Assortments

Shim Assortments for Shortening Shoulder Screws

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

Ring Shim Assortments

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

Shim Assortments for Button Dies

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

Shim Assortments for Lengthening Shoulder Screws

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

Drill Bushings

Metric Press-Fit Drill Bushings

Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part.

Made-to-Order Metric Press-Fit Drill Bushings

Choose the ID, OD, and length you need.

Press-Fit Drill Bushings

Made-to-Order Press-Fit Drill Bushings

Choose the ID, OD, and length you need.

Finish-Your-Own Press-Fit Drill Bushings

Larger OD tolerances than standard press-fit bushings allow for finishing. Bushings should be machine ground.

Corrosion-Resistant Press-Fit Drill Bushings

These bushings are made of stainless steel, which provides excellent corrosion resistance.

Wear-Resistant Press-Fit Drill Bushings

Made of durable tungsten carbide, these bushings outlast steel.

Metric Press-Fit Drill Bushings with Head

Even under extreme drilling pressure, these metric bushings won't press through your jig plate. A flanged head on the top of the bushing acts as a stop, preventing it from moving as you push down your drill bit, reamer, or other cutting bit.

Made-to-Order Press-Fit Drill Bushings with Head

Choose the ID, OD, and length you need.

Press-Fit Drill Bushings with Head

The head prevents these bushings from being pushed through the jig when drilling pressure is extreme. The head sits above the jig plate or can be mounted flush by installing in a counterbored hole.

Made-to-Order Removable Drill Bushings

Choose the ID, OD, and length you need.

Removable Drill Bushings

Replace worn bushings and quickly change IDs without needing to repeatedly use a lever press. Instead of pressing bushings in and out of your jig fixture, which can cause damage, these bushings slide in and out of sleeves.

Drill Bushings for Soft Metal and Wood

The serrations at the top of the bushing grip to prevent rotation and spin out.

Secure-Hold Drill Bushings for Plastic

The knurls resist force and provide better holding strength than serrations. Encase in plastic tooling.

Removable Drill Bushings for Thin Metal

Insert these bushings into a drilled hole and twist the lock ring to secure. Reusable and easy to replace, they are held in in place by a separate locking part.

Drill Bushings for Plastic

The serrations grip to prevent rotation and spin out. Press or encase into plastic tooling.