Corrosion-Resistant Single U-Joints
Use these U-joints in wet environments to connect and transfer torque between two shafts. Made of 303 stainless steel, they balance strength with good corrosion resistance. They’re single U-joints, so they join shafts that are misaligned at an angle. With a pin-and-block joint, they handle higher torque at lower speeds than other joint types such as those with needle bearings, making them a good choice for most applications.
To extend their life by keeping lubricant in and contaminants out, use the grooves on their body to add a cover (sometimes called bellows or boots). Drill holes through the U-joint and your shafts and then connect using spring pins.
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. | Overall Lg. | Max. Operating Angle | Max. Speed, rpm | Max. Torque, in.-lbs. | 3° Operating Angle | 10° Operating Angle | Joint Type | Each | |
303 Stainless Steel | |||||||||||
3/8" | 7/8" | 3/4" | 2 11/16" | 25° | 1,750 | 510 | 330 in.-lbs. @ 300 rpm | 110 in.-lbs. @ 300 rpm | Pin and Block | 0000000 | 0000000 |
1/2" | 1" | 1" | 3 3/8" | 25° | 1,750 | 1,040 | 595 in.-lbs. @ 300 rpm | 200 in.-lbs. @ 300 rpm | Pin and Block | 0000000 | 000000 |
5/8" | 1 1/16" | 1 1/4" | 3 3/4" | 25° | 1,750 | 3,480 | 980 in.-lbs. @ 300 rpm | 330 in.-lbs. @ 300 rpm | Pin and Block | 0000000 | 000000 |
3/4" | 1 3/16" | 1 1/2" | 4 1/4" | 25° | 1,750 | 5,280 | 1,425 in.-lbs. @ 300 rpm | 480 in.-lbs. @ 300 rpm | Pin and Block | 0000000 | 000000 |
1" | 1 1/2" | 2" | 5 7/16" | 25° | 1,750 | 10,400 | 2,635 in.-lbs. @ 300 rpm | 885 in.-lbs. @ 300 rpm | Pin and Block | 0000000 | 00000000 |