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. This keeps machines running smoothly. They’re single U-joints, so they connect and transfer torque between shafts that are misaligned at an angle.

Your shafts’ misalignment will affect the speed and torque the U-joint will be able to transmit. The more the shafts are misaligned, the less speed and torque the U-joint will be able to transmit.

Ball-bearing U-joints operate with less friction than pin-and-block joints, so they run at higher speeds. 303 stainless steel U-joints balance strength with good corrosion resistance.

U-joints that connect with set screws don’t require you to drill any holes. U-joints that connect with spring pins require you to drill holes through both the U-joint and your shafts. Spring pins are not included.

U-joints that don’t require lubrication are often used with optical devices and other sensitive equipment because they're less likely to attract dust and debris compared to lubricated U-joints. They’re also easier to maintain. Lubricated U-joints don’t require lubrication during installation.

For technical drawings and 3-D models, click on a part number.