Filter by
System of Measurement
Shaft Diameter
Material
Shaft Type
Shaft Mount Type
Flexible Shaft Coupling Cut Style
For Rotary Motion
Maximum Torque
Export Control Classification Number (ECCN)
RoHS
DFARS Specialty Metals
Finish
Shaft Coupling Flexibility
Maximum Rotation Speed
Clamping Screw Material
Rotation Speed
Torque
Clamping Precision Flexible Shaft Couplings
 |
Spiral Cut |
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure.
Spiral Cut—Spiral couplings have long cuts in their body for flexibility to handle parallel, axial, and angular misalignment better than parallel couplings. However, they’re not as rigid. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings.
7075 Aluminum—7075 aluminum couplings are lightweight with good corrosion resistance.
Misalignment Capability | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter | Overall Lg. | OD | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | For Rotary Motion | Each | |||
Spiral Cut | ||||||||||||
7075 Aluminum | ||||||||||||
| 1/8" × 3/32" | 3/4" | 1/2" | 10,000 | 5 | 0.005" | 2° | 0.005" | Forward/Reverse, Start/Stop | 6208K361 | 0000000 | ||
| 5/32" × 3/32" | 3/4" | 1/2" | 10,000 | 5 | 0.005" | 2° | 0.005" | Forward/Reverse, Start/Stop | 6208K363 | 000000 | ||
| 3/16" × 3/32" | 3/4" | 1/2" | 10,000 | 5 | 0.005" | 2° | 0.005" | Forward/Reverse, Start/Stop | 6208K366 | 000000 | ||
| 1/4" × 3/32" | 3/4" | 3/4" | 10,000 | 20 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 6208K427 | 000000 | ||
Set Screw Precision Flexible Shaft Couplings
 |
Tighten the set screws to fasten these couplings to your shaft. Set screws bite into the shaft to hold the couplings in place. All are lightweight, corrosion-resistant aluminum.
Spiral Cut—Spiral couplings have long, continuous cuts in the body, making them flexible enough to handle parallel, axial, and angular misalignment. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings. Spiral couplings are less rigid than parallel couplings.
Misalignment Capability | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter | Overall Lg. | OD | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | For Rotary Motion | Each | |||
Spiral Cut | ||||||||||||
7075 Aluminum | ||||||||||||
| 1/4" × 3/32" | 3/4" | 3/4" | 10,000 | 20 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 9861T427 | 000000 | ||
Precision Single U-Joints
 |
Ball-Bearing Joint |
 |
Ball-Bearing Joint |
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 Joint—Ball-bearing U-joints operate with less friction than pin-and-block joints, so they run at higher speeds.
303 Stainless Steel—303 stainless steel U-joints balance strength with good corrosion resistance.
Spring-Pin Shaft Mount—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.
Lubrication Not Required—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.
For Shaft | Torque | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dp. | Joint Dia. | Overall Lg. | Max. Operating Angle | Max. Rotation Speed, rpm | Max. Torque, in·lbf | 5° Operating Angle | 10° Operating Angle | Shaft Mount Type | Lubrication | Each | |||
Ball-Bearing Joint | ||||||||||||||
303 Stainless Steel | ||||||||||||||
| 3/32" | 11/32" | 3/16" | 1" | 30° | 4,000 | 1 | 0.9 in·lbf @ 1,500 rpm | 0.8 in·lbf @ 1,500 rpm | Spring Pin | Not Required | 60075K74 | 000000 | ||
Two-Piece Shaft Collars
Set Screw Shaft Collars
 |
Set Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 3/32" | 3/8" | 3/16" | Hex Socket | 1 | 9414T2 | 00000 | ||
Zinc-Plated Carbon Steel | ||||||||
| 3/32" | 3/8" | 3/16" | Hex Socket | 1 | 6432K72 | 0000 | ||
303 Stainless Steel | ||||||||
| 3/32" | 3/8" | 3/16" | Hex Socket | 1 | 6462K72 | 0000 | ||
316 Stainless Steel | ||||||||
| 3/32" | 3/8" | 3/16" | Hex Socket | 1 | 9943K12 | 00000 | ||
Aluminum | ||||||||
| 3/32" | 3/8" | 3/16" | Hex Socket | 1 | 9946K2 | 0000 | ||
Shaft Collars
