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. They also keep parallel shafts moving in sync by making the output shaft move at the same rate as the input shaft. And because their ball bearings operate with less friction than pin-and-block joints, they run at higher speeds. Made of stainless steel, these U-joints balance strength with good corrosion resistance.
They come lubricated, so you won’t need to lubricate them during installation. Connect them to shafts using the included set screws. Unlike U-joints that use spring pins, there’s no drilling required.
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.
For technical drawings and 3-D models, click on a part number.
For Shaft | Torque | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dp. | Joint Dia. | O'all Lg. | OD | Max. Operating Angle | Max. Speed, rpm | Max. Torque, in.-lbs. | 5° Operating Angle | 10° Operating Angle | Parallel Misalignment Capability | Joint Type | Each | |
303 Stainless Steel | |||||||||||||
1/4" | 1/2" | 3/8" | 2 1/2" | __ | 30° | 4,000 | 16 | 14.4 in.-lbs. @ 1,500 rpm | 12.8 in.-lbs. @ 1,500 rpm | 0.45" | Ball Bearing | 00000000 | 0000000 |
3/8" | 3/8" | 3/4" | 2 7/8" | 1 3/8" | 20° | 2,000 | 30 | 24.9 in.-lbs. @ 1,000 rpm | 19.9 in.-lbs. @ 1,000 rpm | 0.4" | Ball Bearing | 0000000 | 000000 |
1/2" | 7/8" | 1" | 3 7/8" | 1 7/8" | 20° | 2,000 | 75 | 62.5 in.-lbs. @ 1,000 rpm | 49.9 in.-lbs. @ 1,000 rpm | 0.5" | Ball Bearing | 0000000 | 000000 |
5/8" | 7/8" | 1" | 3 7/8" | 1 7/8" | 20° | 2,000 | 75 | 62.5 in.-lbs. @ 1,000 rpm | 49.9 in.-lbs. @ 1,000 rpm | 0.5" | Ball Bearing | 0000000 | 000000 |
3/4" | 7/8" | 1" | 3 7/8" | 1 7/8" | 20° | 2,000 | 75 | 62.5 in.-lbs. @ 1,000 rpm | 49.9 in.-lbs. @ 1,000 rpm | 0.5" | Ball Bearing | 0000000 | 000000 |
1" | 1 1/2" | 1 1/2" | 6 3/4" | 2 1/2" | 10° | 1,500 | 600 | 468.7 in.-lbs. @ 750 rpm | 374.9 in.-lbs. @ 750 rpm | 0.75" | Ball Bearing | 0000000 | 00000000 |