McMaster-Carr

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.

Light Duty Ball Bearings

Use these bearings where high speed and precision are not required.

Electrically Insulated Ball Bearings

Good for use in electric motors and power generators, these bearings have ceramic balls that insulate against stray current to prevent damage to the bearing.

High-Load Ball Bearings

Wider than our standard ball bearings, these rugged bearings are good for handling heavy loads at low speeds.

One-Way Locking
Ball Bearing Clutches

Internal locking elements (sprags) lock to transmit torque in one direction while turning freely in the other direction.

Hex-Bore Ball Bearings

Mount these bearings onto a hex shaft.

Self-Aligning Ball Bearings

With a spherical raceway and two rows of balls, these bearings compensate for shaft misalignment.

Stainless Steel Ball Bearings

Permanently Lubricated
Stainless Steel Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Bearings are 440C stainless steel.

Precision Stainless
Steel Ball Bearings

Made to tight tolerances, these 440C stainless steel bearings combine speed and accuracy with corrosion resistance.

Food Industry Permanently Lubricated
Stainless Steel Ball Bearings

Good for applications with incidental food contact, these 440C stainless steel bearings have a food-grade, solid polymer lubricant between the balls and race that eliminates the need for additional lubrication.

Stainless Steel Ball Bearings

Bearings are 440C stainless steel for good corrosion resistance.

Ultra-Corrosion-Resistant
Stainless Steel Ball Bearings

These 316 stainless steel bearings are more corrosion resistant than our other stainless steel bearings, but they have a lower load capacity.

Plastic Ball Bearings

Water-Resistant Plastic Ball Bearings

Made of PVDF, these bearings resist moisture absorption, so they won’t warp in underwater applications.

High-Temperature
Plastic Ball Bearings

These PEEK bearings operate in temperatures above 300° F, almost twice as high as our other plastic ball bearings.

Flanged Ball Bearings

The flange ensures proper positioning inside a tube or housing.

Precision Flanged Ball Bearings

When speed and accuracy matter most, opt for these bearings. They’re made to tighter tolerances than standard flanged ball bearings.

Self-Aligning Flanged Ball Bearings

No need to worry about precisely aligning these bearings—they swivel to compensate for up to 5° of shaft misalignment.

Lubrication-Free Plastic
Flanged Ball Bearings

Install these acetal bearings in caustic environments and where lubrication can’t be used. They have good all-around corrosion and chemical resistance.

Set Screw Collar Ball Bearings

Slip these bearings onto a shaft and secure with the included set screws, no special tools required.

Panel-Mount Ball Bearings

Unlike other ball bearings, these do not need to be fully inserted into a housing. A spline around the outside of the bearing creates a permanent, secure hold in thin panels.

Ball Bearings for Combined Loads

Angular-Contact Ball Bearings

The raceways in these bearings are positioned off-center to handle angular (combined radial and thrust) loads.

Ultra-Thin Ball Bearings

With twice as many contact points as angular-contact ball bearings, these bearings resist any combination of radial, thrust, and moment loads.

Thrust Ball Bearings

Corrosion-Resistant
Thrust Ball Bearings

A combination of stainless steel and nylon components provide increased corrosion resistance over standard thrust ball bearings.

Thrust Ball Bearings for Shaft Ends

Use these bearings as miniature high-precision turntables. They have a unique design that allows your shaft to sit on top of the bearing rather than being inserted through it.

Thrust Ball Bearings

Steel balls and washers allow these bearings to handle higher loads than bearings with stainless steel components.

One-Piece Thrust Ball Bearings

In addition to handling higher loads than three-piece ball bearings, one-piece bearings are easier to handle. They have an outer band that holds the bearing together and acts as a shield against dust and other contaminants.

Roller Bearings

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together.

Spherical-Roller Bearings

Two rows of rollers give these bearings load capacities over five times higher than comparably sized tapered-roller bearings.

Tapered-Roller Bearings

Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.

One-Way Locking
Needle-Roller Bearing Clutches

The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed. Also known as drawn-cup roller clutches.

Crossed-Roller Bearings

With a considerably larger ID than our Face-Mount Crossed-Roller Bearings, use these to run hydraulic lines, electrical wiring, and other components through the inside of the bearing.

Precision Needle-Roller Bearings

These bearings have higher radial load capacity, speed, and accuracy than standard needle-roller bearings.

Shaft Liners for Precision
Needle-Roller Bearings

Adapt high-precision needle-roller bearings to use on unhardened, unground shafts.

Face-Mount Crossed-Roller Bearings

Mounting holes on the inner and outer rings allow for fastening onto hollow joints and shafts.

Combination
Ball/Needle-Roller Bearings

A built-in thrust ball bearing reduces wear from adjacent shaft components, while the needle-roller bearing supports radial loads.

Needle-Roller Thrust Bearings

Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings.

Tapered-Roller Thrust Bearings

Thick, tapered rollers stand up to extremely high thrust loads.

Washers for Needle-Roller
Thrust Bearings

Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.

Mounted Bearings with Two-Bolt Flange

High-Speed Mounted Ball
Bearings with Two-Bolt Flange

These bearings have the highest speed ratings of any mounted ball bearing in our offering.

Ultra-Corrosion-Resistant Mounted
Ball Bearings with Two-Bolt Flange

Use these bearings in corrosive environments and under water.

Low-Profile Mounted Ball
Bearings with Two-Bolt Flange

Designed with a thin, compact housing, these bearings are good for space-constrained applications.

High-Temperature Mounted Ball
Bearings with Two-Bolt Flange

Synthetic grease enables these bearings to operate in temperatures up to 400° F—nearly double the maximum temperature of standard mounted ball bearings with two-bolt flange.

Light Duty Mounted Ball
Bearings with Two-Bolt Flange

Use these bearings for light loads and small shafts. The closed backing blocks out dust and other contaminants.

Mounted Ball Bearings
with Two-Bolt Flange

Ball bearings operate with less friction than other bearings, so you can run them at higher speeds.

Food Industry Mounted Ball
Bearings with Two-Bolt Flange

The lubricant in these mounted ball bearings is suitable for incidental contact with food.

Mounted Roller Bearings
with Two-Bolt Flange

These roller bearings handle extremely high speeds for their small size.

Mounted Bearings with Four-Bolt Flange

High-Speed Mounted Ball
Bearings with Four-Bolt Flange

These bearings have the highest speed ratings of any mounted ball bearing in our offering.

High-Temperature Mounted Ball
Bearings with Four-Bolt Flange

Synthetic grease enables these bearings to operate in temperatures up to 400° F—nearly double the maximum temperature of standard mounted ball bearings with four-bolt flange.

Food-Grade Mounted Ball
Bearings with Four-Bolt Flange

The lubricant in these mounted ball bearings is suitable for incidental contact with food.

Mounted Roller Bearings
with Four-Bolt Flange

The tapered rollers in these bearings support large shafts at high static loads.

Ultra-Corrosion-Resistant Mounted
Ball Bearings with Four-Bolt Flange

Use these bearings in corrosive environments and under water.

Mounted Ball Bearings
with Four-Bolt Flange

A bold in each corner makes for a secure, even hold.

Mounted Bearings

Mounted Roller Bearings

Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.

Ultra-Corrosion-Resistant
Mounted Ball Bearings

Use these bearings in corrosive environments and under water.

Food Industry Mounted Ball Bearings

The lubricant in these mounted ball bearings is suitable for incidental contact with food.

High-Speed Mounted Ball Bearings

These bearings have the highest speed ratings of any mounted ball bearing that we offer.

High-Temperature
Mounted Ball Bearings

Synthetic grease enables these bearings to operate in temperatures up to 400° F—nearly double the maximum temperature of standard mounted ball bearings.

Mounted Ball Bearings

Ball bearings operate with less friction than other bearings, so they can run at higher speeds.

Permanently Lubricated
Mounted Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication.

Low-Profile Mounted Ball Bearings

Designed with a thin, compact housing, these bearings are good for space-constrained applications.

Thread-Mount Bearings

Combine with threaded pipe to mount these bearings in a variety of positions without the need for a flat mounting surface.

Mounted Bearings with Three-Bolt Flange

Mounted Bearings
with Three-Bolt Flange

With all three mounting holes on one side, you can position the bearing above or below the mounting surface.

Insert Bearings

Swap out worn inserts instead of replacing the entire mounted unit.

Ball Bearing Carriages and Guide Rails

Ball Bearing Carriages
and Guide Rails

These carriages and guide rails are steel.

Corrosion-Resistant Ball Bearing
Carriages and Guide Rails

Made of stainless steel, these carriages and guide rails are more corrosion resistant than steel carriages and guide rails.

Horizontal-Mount Ball Bearing
Carriages and Guide Rails

Designed specifically for use on horizontal surfaces, the contact angle of the ball bearings on the rail allows these carriages to last longer than other carriages.

High-Cycle Ball Bearing
Carriages and Guide Rails

A plastic cage surrounds the ball bearings and keeps them from colliding, so these carriages run for many cycles without needing maintenance.

Maintenance-Free Ball Bearing
Carriages and Guide Rails

These carriages and guide rails are steel.

Corrosion-Resistant
Maintenance-Free Ball
Bearing Carriages and Guide Rails

Made of stainless steel, these carriages and guide rails are more corrosion resistant than steel carriages and guide rails.

Horizontal-Mount Quiet-Ride Ball
Bearing Carriages and Guide Rails

Designed for use on horizontal surfaces, the contact angle of the ball bearings on the rail allows these carriages to last longer than other carriages.

Clean Room Ball Bearing
Carriages and Guide Rails

Suitable for clean room use, these carriages and guide rails are made entirely of stainless steel.

Miniature Ball Bearing
Carriages and Guide Rails

These tiny carriages and guide rails are sized for electronic and other precision applications.

Extra-Wide Ball Bearing
Carriages and Guide Rails

With a wide base and low-profile design, these carriages and guide rails stabilize moment (twisting) and off-center loads better than other carriages and rails. They're good for use in areas where multiple carriages or rails won't fit.

High-Cycle Low-Profile Ball
Bearing Carriages and Guide Rails

Run many cycles in tight spaces before replacing or re-greasing carriages.

High-Cycle Extra-Wide Ball
Bearing Carriages and Guide Rails

With a plastic cage that surrounds the ball bearings to prevent them from colliding, these extra-wide carriages run quietly for many cycles without needing maintenance. All of these carriages have a wide base and low-profile design to stabilize moment (twisting) and off-center loads better than other carriages.

Side-Mount Ball Bearing
Carriages and Guide Rails

Mount to vertical surfaces for applications where tight tolerances aren't required.

Track Roller Carriages and Guide Rails

Self-Aligning Side-Mount Track
Roller Carriages and Guide Rails

Create a self-aligning carriage and guide rail system to compensate for mounting surfaces that aren't parallel.

Light Duty Side-Mount Track
Roller Carriages and Guide Rails

Use these carriages and guide rails for light loads where precise movement is not required.

Corrosion-Resistant Side-Mount Track
Roller Carriages and Guide Rails

These track roller carriages and guide rails are stainless steel for use in wet, corrosive environments.

Locking High-Load Track Roller
Carriages and Guide Rails

A handle on the side of the carriage locks the carriage in place.

High-Load Track Roller
Carriages and Guide Rails

Needle-roller bearings give these track roller carriages higher load capacities than other track roller carriages.

Roller Bearing Carriages and Guide Rails

Roller Bearing Carriages
and Guide Rails

Roller bearing carriages handle heavier loads than ball bearing and track roller carriages.

Telescoping Rail Sets

Create your own positioning table or telescoping slide. Sets include four rails, two roller bearing cages, and eight end stops.

Mounted Linear Bearings

Frictionless-Motion Mounted
Linear Air Bearings

Float bearings on air for precise, frictionless movement. Unlike traditional bearings that can wear your shaft down, these bearings are suspended using pressurized air for linear and rotary motion.

Mounted Linear Ball Bearings

Choose ball bearings for debris-free environments and when speed is a necessity. They operate with less friction than sleeve bearings, so you can run them at higher speeds.

Adjustable Mounted
Linear Ball Bearings

Use the adjustment screw in the housing to tighten or loosen the snugness (also known as preload) of the bearing to your shaft.

High-Load Mounted
Linear Ball Bearings

Designed to handle heavy loads, these bearings have the highest load capacities of any mounted linear ball bearings we offer.

Corrosion-Resistant Mounted
Linear Ball Bearings

Outdoor as well as mild chemical environments are no problem for these bearings. They have stainless steel balls for corrosion resistance.

Flange-Mounted Linear Ball Bearings

The flanged housing makes these bearings a good solution for vertical linear motion applications.

Corrosion-Resistant Flange-Mounted
Linear Ball Bearings

The shell, housing, and balls of these bearings are stainless steel for excellent corrosion resistance.

High-Load Mounted Linear Ball
Bearings for Support Rail Shafts

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard mounted linear ball bearings for Support Rail Shafts.

Mounted Linear Bearings
for Spline Shafts

A flanged housing with mounting holes connects these bearings directly to your system. They have a grooved inner diameter that's designed to work with spline shafts. Together, they transmit rotary power while allowing the bearing to move freely along the length of the shaft.

Corrosion-Resistant Mounted Linear
Ball Bearings for Support Rail Shafts

Outdoor as well as mild chemical environments are no problem for these bearings. They have stainless steel balls for corrosion resistance.

Mounted Linear Ball Bearings
for Support Rail Shafts

Mount these bearings on a support rail shaft for applications requiring maximum rigidity.

Linear Bearing Housings

Flange-Mounted Linear
Bearing Housings

Slide up to two linear ball or sleeve bearings into these housings and secure them with the included internal retaining rings.

Linear Bearing Housings

Slide up to two linear ball or sleeve bearings into these housings and secure them with the included internal retaining rings.

Linear Bearings

High-Temperature
Linear Ball Bearings

The choice for low-friction motion in high-temperature environments.

Linear Ball Bearings
for Support Rail Shafts

Ball bearings create less friction than sleeve bearings, so they require less force to operate.

High-Load Linear Ball Bearings

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard linear ball bearings.

Linear Ball Bearings

Use ball bearings in debris-free environments and when speed is a necessity. They operate with less friction than sleeve bearings, so you can run them at higher speeds.

Linear Bearings for Spline Shafts

With a grooved inner diameter, these bearings are designed to work with splined shafts. Together, they transmit rotary power while allowing the bearing to move freely along the length of the shaft. All are for use where shaft misalignment is unlikely.

Linear and Rotary Ball Bearings

Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts.

High-Temperature Linear Ball
Bearings for Support Rail Shafts

The choice for low-friction motion in high-temperature environments.

High-Load Linear Ball Bearings
for Support Rail Shafts

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard linear ball bearings for support rail shafts.

Material Handling

Wheel Bearings

Replace worn or damaged wheel bearings to keep your equipment rolling.

Speed Reducers for Roller Conveyors

Also known as pallet brakes, these mount underneath rollers on a gravity conveyor and create friction on the rollers to control the conveyor's speed.

Ball Bearings with Axle
for Conveyor Rollers

Use these bearings to replace worn and damaged bearings or press-fit them into tubing or pipe create a roller. All have a hex-shaped axle.

Sleeve Bearings for Conveyor Rollers

Sleeve bearings ride directly on the axle and have no moving parts to wear out.

Ball Bearings for Conveyor Rollers

Replace worn and damaged bearings or press-fit bearings into tubing or pipe to create a roller.

Terms and Conditions and Privacy Policy

About Ball and Roller Bearings

Steel Ball Bearings

Ball Bearings

Precision Ball Bearings

Permanently Lubricated Ball Bearings

Light Duty Ball Bearings

Electrically Insulated Ball Bearings

High-Load Ball Bearings

One-Way LockingBall Bearing Clutches

Hex-Bore Ball Bearings

Self-Aligning Ball Bearings

Stainless Steel Ball Bearings

Permanently LubricatedStainless Steel Ball Bearings

Precision StainlessSteel Ball Bearings

Food Industry Permanently LubricatedStainless Steel Ball Bearings

Stainless Steel Ball Bearings

Ultra-Corrosion-ResistantStainless Steel Ball Bearings

Plastic Ball Bearings

Plastic Ball Bearings

Water-Resistant Plastic Ball Bearings

High-TemperaturePlastic Ball Bearings

Flanged Ball Bearings

Flanged Ball Bearings

Precision Flanged Ball Bearings

Self-Aligning Flanged Ball Bearings

Lubrication-Free PlasticFlanged Ball Bearings

Set Screw Collar Ball Bearings

Set Screw Collar Ball Bearings

Panel-Mount Ball Bearings

Panel-Mount Ball Bearings

Ball Bearings for Combined Loads

Angular-Contact Ball Bearings

Ultra-Thin Ball Bearings

Thrust Ball Bearings

Corrosion-ResistantThrust Ball Bearings

Thrust Ball Bearings for Shaft Ends

Thrust Ball Bearings

One-Piece Thrust Ball Bearings

Roller Bearings

Needle-Roller Bearings

Spherical-Roller Bearings

Tapered-Roller Bearings

One-Way LockingNeedle-Roller Bearing Clutches

Crossed-Roller Bearings

Precision Needle-Roller Bearings

Shaft Liners for PrecisionNeedle-Roller Bearings

Face-Mount Crossed-Roller Bearings

CombinationBall/Needle-Roller Bearings

Needle-Roller Thrust Bearings

Tapered-Roller Thrust Bearings

Washers for Needle-RollerThrust Bearings

Mounted Bearings with Two-Bolt Flange

High-Speed Mounted BallBearings with Two-Bolt Flange

Ultra-Corrosion-Resistant MountedBall Bearings with Two-Bolt Flange

Low-Profile Mounted BallBearings with Two-Bolt Flange

High-Temperature Mounted BallBearings with Two-Bolt Flange

Light Duty Mounted BallBearings with Two-Bolt Flange

Mounted Ball Bearingswith Two-Bolt Flange

Food Industry Mounted BallBearings with Two-Bolt Flange

Mounted Roller Bearingswith Two-Bolt Flange

Mounted Bearings with Four-Bolt Flange

High-Speed Mounted BallBearings with Four-Bolt Flange

High-Temperature Mounted BallBearings with Four-Bolt Flange

Food-Grade Mounted BallBearings with Four-Bolt Flange

Mounted Roller Bearingswith Four-Bolt Flange

Ultra-Corrosion-Resistant MountedBall Bearings with Four-Bolt Flange

Mounted Ball Bearingswith Four-Bolt Flange

Mounted Bearings

Mounted Roller Bearings

Ultra-Corrosion-ResistantMounted Ball Bearings

Food Industry Mounted Ball Bearings

High-Speed Mounted Ball Bearings

High-TemperatureMounted Ball Bearings

Mounted Ball Bearings

Permanently LubricatedMounted Ball Bearings

Low-Profile Mounted Ball Bearings

Thread-Mount Bearings

Thread-Mount Bearings

Mounted Bearings with Three-Bolt Flange

Mounted Bearingswith Three-Bolt Flange

One-Way Locking
Ball Bearing Clutches

Permanently Lubricated
Stainless Steel Ball Bearings

Precision Stainless
Steel Ball Bearings

Food Industry Permanently Lubricated
Stainless Steel Ball Bearings

Ultra-Corrosion-Resistant
Stainless Steel Ball Bearings

High-Temperature
Plastic Ball Bearings

Lubrication-Free Plastic
Flanged Ball Bearings

Corrosion-Resistant
Thrust Ball Bearings

One-Way Locking
Needle-Roller Bearing Clutches

Shaft Liners for Precision
Needle-Roller Bearings

Combination
Ball/Needle-Roller Bearings

Washers for Needle-Roller
Thrust Bearings

High-Speed Mounted Ball
Bearings with Two-Bolt Flange

Ultra-Corrosion-Resistant Mounted
Ball Bearings with Two-Bolt Flange

Low-Profile Mounted Ball
Bearings with Two-Bolt Flange

High-Temperature Mounted Ball
Bearings with Two-Bolt Flange

Light Duty Mounted Ball
Bearings with Two-Bolt Flange

Mounted Ball Bearings
with Two-Bolt Flange

Food Industry Mounted Ball
Bearings with Two-Bolt Flange

Mounted Roller Bearings
with Two-Bolt Flange

High-Speed Mounted Ball
Bearings with Four-Bolt Flange

High-Temperature Mounted Ball
Bearings with Four-Bolt Flange

Food-Grade Mounted Ball
Bearings with Four-Bolt Flange

Mounted Roller Bearings
with Four-Bolt Flange

Ultra-Corrosion-Resistant Mounted
Ball Bearings with Four-Bolt Flange

Mounted Ball Bearings
with Four-Bolt Flange

Ultra-Corrosion-Resistant
Mounted Ball Bearings

High-Temperature
Mounted Ball Bearings

Permanently Lubricated
Mounted Ball Bearings

Mounted Bearings
with Three-Bolt Flange

Ball Bearing Carriages
and Guide Rails

Corrosion-Resistant Ball Bearing
Carriages and Guide Rails

Horizontal-Mount Ball Bearing
Carriages and Guide Rails

High-Cycle Ball Bearing
Carriages and Guide Rails

Maintenance-Free Ball Bearing
Carriages and Guide Rails

Corrosion-Resistant
Maintenance-Free Ball
Bearing Carriages and Guide Rails

Horizontal-Mount Quiet-Ride Ball
Bearing Carriages and Guide Rails

Clean Room Ball Bearing
Carriages and Guide Rails

Miniature Ball Bearing
Carriages and Guide Rails

Extra-Wide Ball Bearing
Carriages and Guide Rails

High-Cycle Low-Profile Ball
Bearing Carriages and Guide Rails

High-Cycle Extra-Wide Ball
Bearing Carriages and Guide Rails

Side-Mount Ball Bearing
Carriages and Guide Rails

Self-Aligning Side-Mount Track
Roller Carriages and Guide Rails

Light Duty Side-Mount Track
Roller Carriages and Guide Rails

Corrosion-Resistant Side-Mount Track
Roller Carriages and Guide Rails

Locking High-Load Track Roller
Carriages and Guide Rails

High-Load Track Roller
Carriages and Guide Rails

Roller Bearing Carriages
and Guide Rails

Frictionless-Motion Mounted
Linear Air Bearings

Adjustable Mounted
Linear Ball Bearings

High-Load Mounted
Linear Ball Bearings

Corrosion-Resistant Mounted
Linear Ball Bearings

Corrosion-Resistant Flange-Mounted
Linear Ball Bearings

High-Load Mounted Linear Ball
Bearings for Support Rail Shafts

Mounted Linear Bearings
for Spline Shafts

Corrosion-Resistant Mounted Linear
Ball Bearings for Support Rail Shafts

Mounted Linear Ball Bearings
for Support Rail Shafts

Flange-Mounted Linear
Bearing Housings

High-Temperature
Linear Ball Bearings

Linear Ball Bearings
for Support Rail Shafts

High-Temperature Linear Ball
Bearings for Support Rail Shafts

High-Load Linear Ball Bearings
for Support Rail Shafts

Ball Bearings with Axle
for Conveyor Rollers