3" OD Bearings | McMaster-Carr

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111 Products

Bearings

Ultra-Thin Ball Bearings

These bearings have twice as many contact points as angular-contact ball bearings.

Oil-Embedded Thrust Bearings

Also known as Oilite® bearings.

Ultra-Low-Friction Oil-Embedded Thrust Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

High-Load Oil-Embedded Thrust Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.

Light Duty Dry-Running Thrust Bearings

Use where high loads and speeds are not required.

Ultra-Low-Friction Dry-Running Thrust Bearings

Use these bearings in applications with frequent starts and stops because they operate with very little friction.

High-Temperature Dry-Running Thrust Bearings

Graphite provides a layer of dry lubrication that operates in high-temperature environments.

Food Industry Dry-Running Thrust Bearings

Made of FDA listed materials for use in food applications, these bearings also withstand caustic and washdown environments.

Water-Resistant Dry-Running Thrust Bearings

Good for underwater applications, these bearings won’t swell or warp when wet.

Chemical-Resistant Dry-Running Thrust Bearings

These bearings stand up to a wider range of chemicals than other dry-running thrust bearings.

Multipurpose Thrust Bearings

These leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads.

Corrosion-Resistant Thrust Bearings

The addition of iron and aluminum gives these aluminum-bronze bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.

Tapered-Roller Bearings

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

Needle-Roller Thrust Bearings

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

Washers for Needle-Roller Thrust Bearings

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

Linear 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 and Rotary Ball Bearings

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

High-Load Linear Ball Bearings

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

Linear Sleeve Bearings

Because they usually do not require lubrication, linear sleeve bearings outperform linear ball bearings in dirty environments.

Dust-Resistant Linear Sleeve Bearings

Ridges on the inside of these bearings wipe away dust and debris as the bearing travels on a shaft.

Linear Sleeve Bearings for Support Rail Shafts

Sleeve bearings outperform ball bearings in dirty environments. Use them for low speed applications.

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.

Raw Materials

Easy-to-Weld 4130 Alloy Steel Round Tubes

4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications.

932 Bearing Bronze Tubes

Offering excellent antifriction qualities, 932 bronze also offers good strength and wear resistance. It's also known as SAE 660 and is often used for bearings, bushings, and thrust washers.

Oil-Filled 841 Bearing Bronze Tubes

Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating.

Weldable 954 Bearing Bronze Tubes

954 bronze contains a minimum of 10% aluminum for strength and weldability. It is also known as aluminum bronze. It's widely used for bearings, bushings, valve bodies, and worm gears. The strength of this material increases with heat treating.

Easy-to-Machine 936 Bearing Bronze Tubes

An easier-to-machine alternative to 932 bronze, 936 also has better corrosion resistance. It's also called modified SAE 64.

MDS-Filled Easy-to-Machine
Wear-Resistant Cast Nylon Tubes

The addition of MDS gives these tubes exceptional wear resistance along with a self-lubricating surface. They're made of cast nylon 6, making them easier to machine and better electrical insulators than other MDS-filled nylon tubes.

Heat-Stabilized Easy-to-Machine
Wear-Resistant Cast Nylon Tubes

A good choice for making sprockets and pulleys, these cast nylon 6 tubes withstand higher temperatures and are easier to machine than standard nylon 6/6 tubes.

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.

Disc Shims

Use these round shims as they are, or punch out the middle to create the ID you need.

Bushings for Sprockets and Pulleys

Self-Adjusting Spring Bushings

A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit.

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting.