Universal Joints | McMaster-Carr

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418 Products

Single U-Joints

Connect and transfer torque between two shafts that are misaligned at an angle.

Corrosion-Resistant Single U-Joints

Use these U-joints in wet environments to connect and transfer torque between two shafts.

High-Torque Single U-Joints

With a maximum torque of at least 11,600 in.-lbs., these U-joints handle more torque than any other U-joint in our offering.

Sealed Single U-Joints

A cover (also known as a boot or bellows) seals out contaminants and seals in lubricant.

Corrosion-Resistant Sealed Single U-Joints

Ideal for wet environments, these U-Joints are stainless steel, so they have good corrosion resistance while also balancing strength. They have a heat- and water-resistant silicone cover (also known as a boot or bellows) to keep lubricant in and contaminants out.

Sanitary Sealed Single U-Joints

Often found in food, cosmetic, and pharmaceutical plants, these U-joints connect misaligned shafts in sanitary environments.

Corrosion-Resistant Mil. Spec.
Machinable-Bore Single U-Joints

Made to meet strict military standards for material and construction, these stainless steel U-joints also balance strength with good corrosion resistance. Customize their bores until they fit your shafts.

Mil. Spec. Machinable-Bore Single U-Joints

Drill the bores to create custom U-joints that meet strict military standards for material and construction.

Machinable-Bore Single U-Joints

Customize the bores of these U-joints to fit the exact dimensions of your shafts.

Corrosion-Resistant High-Speed Single U-Joints

Choose these U-joints for applications that run continuously in wet environments.

High-Speed Single U-Joints

Often found in continuously running applications, these U-joints operate at higher speeds and last longer than other types of joints, thanks to their needle bearings.

Precision Single U-Joints

A good choice when you need accurate and repeatable motion, these U-joints have zero backlash (no play), so there’s no motion lost when your shafts change direction.

Constant-Velocity Single U-Joints

To keep your shafts moving in sync, the flexible spring on these joints makes the output shaft move at the same rate as the input shaft.

Clamp-On Single U-Joints

Ideal for use in assemblies that change frequently, these U-joints have clamping screws that can be quickly loosened when you need to move them.

Extreme-Angle Geared Single U-Joints

The gears on these U-joints transmit rotary motion between shafts that are misaligned at angles up to 136°, the widest angle of all our U-joints.

Double U-Joints

Adjustable-Length Precision Double U-Joints

Lengthen and shorten these telescoping U-joints to fit your application. They’re a good choice when you need accurate and repeatable motion because they have zero backlash (no play), so there’s no motion lost when the shafts change direction.

Precision Double U-Joints

Since these U-joints have zero backlash (no play), there’s no motion lost when your shafts change direction, so machines move smoothly with more accurate, repeatable motion. As double U-joints, they connect and transfer torque between two shafts that are either parallel to each other or are misaligned at an angle.

Quick-Change Adjustable-Length Double U-Joints

A spring automatically lengthens or shortens these U-joints to fit your application, making them a good choice for assemblies with frequent changes.

Double U-Joints

Connect and transfer torque between two shafts that are either parallel to each other or are misaligned at an angle.

Machinable-Bore Double U-Joints

Drill custom bore sizes to connect shafts that are either parallel to each other or are misaligned at an angle.

Socket Adapters and Extensions

Impact Flex Socket Adapters

Convert your impact socket into a flex socket to access fasteners from an angle.

Impact Flex Socket Adapter Sets

Convert your impact socket into a flex socket to access fasteners from an angle.

Flex Impact Socket Extensions

Attach one of these extensions to your impact socket to turn fasteners in hard-to-reach spaces.

Flex Socket Adapters

Convert your socket into a flex socket to access fasteners from an angle.

Flex Socket Adapter Sets

Convert your socket into a flex socket to access fasteners from an angle.

Secure-Hold Flex Socket Adapters

Convert your socket into a flex socket without worrying about the adapter falling off.

Socket Sets

6-Point Flex Socket Sets

Access 6-point nuts and bolts in tight and awkward spaces—the heads on these sockets pivot.

Economy 6-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported.

6-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

12-Point Flex Socket Sets

Pivot the head to access fasteners from an angle.

Square Drive Size Adapter Sets

Convert from one square drive size to another.

Flex Hex Bit Socket Sets

Pivot the head of the sockets in these sets to access fasteners from an angle.

Flex Torx Bit Socket Sets

Pivot the head to access fasteners from an angle.

Impact Square Drive Size Adapter Sets

Convert from one square drive size to another.

6-Point Flex Impact Socket Sets

Pivot the head to access fasteners from an angle.

Flex Impact Hex Bit Socket Sets

Pivot the head to access fasteners from an angle.

Sockets

6-Point Flex Sockets

Pivot the head to access fasteners from an angle.

Extended 6-Point Flex Sockets

Eliminate the risk of your socket falling while reaching into your workspace with these flex sockets that have an integrated extension.

12-Point Flex Sockets

Pivot the head to access fasteners from an angle.

Flex Hex Bit Sockets

Tighten and loosen fasteners at an angle by pivoting the head on these sockets.

Flex Spark Plug Sockets

Pivot the head to access fasteners from an angle.

6-Point Flex Impact Sockets

Pivot the head to access fasteners from an angle.

12-Point Flex Impact Sockets

Pivot the head to access fasteners from an angle.

Ratchet Wrench and Adapter Sets

Use these versatile sets to turn sockets in a variety of hard-to-reach spots.