Maximum Torque Maximum Torque |
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Torque Adjustability Torque Adjustability |
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Torque-Limiting Mechanism Torque-Limiting Mechanism |
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Torque-Limiting Direction Torque-Limiting Direction |
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Maximum Speed Maximum Speed |
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Shaft Mount Type Shaft Mount Type |
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Overall Length Overall Length |
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OD OD |
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Construction Construction |
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Torque-Limiting Flexible Shaft Couplings with Alarm
If they exceed maximum torque, these couplings disengage, sound an alarm, and then automatically re-engage once the overtorque condition is eliminated. Torque can be adjusted ±10% of the factory setting. No lubrication is required. Fasten to your shaft by tightening the set screws, which bite into the shaft to hold it.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Speed, rpm | Parallel | Angular | OD | Overall Lg. | Keyway Wd. × Keyway Dp. | Material | Center Material | Torque-Limiting Direction | Choose a Max. Torque, in.-lbs. | Each | |
For Keyed Shafts | ||||||||||||
| 5/8" | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 3/16" × 3/32" | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 0000000 | 000000 | |
| 3/4" | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 3/16" × 3/32" | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 0000000 | 00000 | |
| 7/8" | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 3/16" × 3/32" | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 0000000 | 00000 | |
| 1" | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 1/4" × 1/8" | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 0000000 | 00000 | |
| 12mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 4mm × 1.9mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 12mm × 15mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 4mm × 1.9mm 5mm × 2.4mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 15mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 5mm × 2.4mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 15mm × 20mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 5mm × 2.4mm 6mm × 2.9mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 20mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 6mm × 2.9mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 20mm × 25mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 6mm × 2.9mm 8mm × 3.4mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
| 25mm | 1,800 | 0.031" | 6° | 3 1/2" | 3" | 8mm × 3.4mm | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 00000000 | 00000 | |
For Round Shafts | ||||||||||||
| 1/2" | 1,800 | 0.031" | 6° | 3 1/2" | 3" | __ | 6061 Aluminum | Steel | Clockwise and Counterclockwise | 0000000 | 00000 | |
Torque-Limiting Flexible Shaft Couplings
Protect shafts, motors, and gear boxes from damage that’s caused by torque overload from machine jams and emergency stops. If your set torque is exceeded, these couplings will disengage and then automatically re-engage once the torque is back within range. They handle more than five times as much torque as our other torque-limiting flexible shaft couplings. Connect them to your shafts with the included set screws, which bite into the shaft or shaft and key for a secure hold.
Single-spring couplings let you make finer torque adjustments than the double-spring couplings, but can only withstand half as much torque.
Double-spring couplings handle twice as much torque as the single-spring couplings, but are not the best for making precise adjustments at low torques.
Couplings for keyed shafts have keyways that are cut to standard ANSI dimensions, so they’ll fit snugly on ANSI keyed shafts to eliminate slipping during starts and stops.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | Roller Chain | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Torque, ft.-lbs. | Max. Speed, rpm | Parallel | Angular | OD | Overall Lg. | Keyway Wd. × Keyway Dp. | Hub Material | Torque-Limiting Direction | Standard | Trade Size | Each | |
Single Spring | |||||||||||||
For Keyed Shafts | |||||||||||||
| 5/8" × 5/8" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 0000000 |
| 5/8" × 3/4" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 3/4" × 3/4" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 1" × 1" | 25 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 1/4" × 1/8" 1/4" × 1/8" | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 12mm × 12mm | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 4mm × 2mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 12mm × 15mm | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 5mm × 2.5mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 15mm × 15mm | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5mm × 2.5mm 5mm × 2.5mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 15mm × 20mm | 25 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5mm × 2.5mm 6mm × 3mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 20mm × 20mm | 25 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 6mm × 3mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 20mm × 25mm | 25 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 8mm × 4mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 25mm × 25mm | 25 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8mm × 4mm 8mm × 4mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
For Round Shaft × For Keyed Shaft | |||||||||||||
| 1/2" × 5/8" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 1/2" × 3/4" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
For Round Shafts | |||||||||||||
| 1/2" × 1/2" | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | __ | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
Double Spring | |||||||||||||
For Keyed Shafts | |||||||||||||
| 5/8" × 5/8" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 5/8" × 3/4" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 3/4" × 3/4" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 1" × 1" | 50 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 1/4" × 1/8" 1/4" × 1/8" | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 12mm × 12mm | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 4mm × 2mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 12mm × 15mm | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 5mm × 2.5mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 15mm × 15mm | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5mm × 2.5mm 5mm × 2.5mm | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 15mm × 20mm | 50 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5mm × 2.5mm 6mm × 3mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 20mm × 20mm | 50 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 6mm × 3mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 20mm × 25mm | 50 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 8mm × 4mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
| 25mm × 25mm | 50 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8mm × 4mm 8mm × 4mm | Steel | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
For Round Shaft × For Keyed Shaft | |||||||||||||
| 1/2" × 5/8" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
| 1/2" × 3/4" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
For Round Shafts | |||||||||||||
| 1/2" × 1/2" | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | __ | Steel | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
Air-Powered Torque-Limiting Shaft Couplings
Often used in automated systems, these couplings are air actuated so you can adjust the torque during operation. In the event of excess torque, they slip to protect motors and drivetrains, and then resume driving once the load has been reduced. You can adjust the torque level without removing them from your shaft.
For technical drawings and 3-D models, click on a part number.
Keyway | Air Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Torque | Max. Pressure, psi | Max. Speed | OD | Overall Lg. | Wd. | Dp. | Torque-Limiting Direction | Thread Size | Thread Type | Gender | Each | |
For Round Shafts | |||||||||||||
| 1/4" | 20 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 0000000 |
| 3/8" | 50 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/2" | 3 3/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
| 1/2" | 100 in.-lbs. @ 100 psi | 100 | Not Rated | 2" | 3 5/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
| 5/8" | 300 in.-lbs. @ 100 psi | 100 | Not Rated | 2 3/4" | 3 5/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
For Keyed Shafts | |||||||||||||
| 1/4" | 20 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/4" | 2 1/2" | 1/16" | 1/32" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
| 3/8" | 50 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/2" | 3 3/8" | 3/32" | 3/64" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
| 1/2" | 100 in.-lbs. @ 100 psi | 100 | Not Rated | 2" | 3 5/8" | 1/8" | 1/16" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
| 5/8" | 300 in.-lbs. @ 100 psi | 100 | Not Rated | 2 3/4" | 3 5/8" | 3/16" | 3/32" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 0000000 | 000000 |
Torque-Limiting Shaft Couplings
Adjust your system's torque limit by hand. In the event of excess torque, these couplings slip to protect motors and drivetrains, and then resume driving once the load has been reduced. You can adjust the torque level without removing them from your shaft.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Torque | Max. Speed, rpm | OD | Overall Lg. | Wd. | Dp. | Torque-Limiting Direction | Each | |
For Round Shafts | |||||||||
| 1/4" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 0000000 |
| 3/8" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 3/8" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 1/2" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 1/2" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 1/2" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 5/8" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
| 5/8" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 0000000 | 000000 |
For Keyed Shafts | |||||||||
| 1/4" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | 1/16" | 1/32" | Clockwise and Counterclockwise | 0000000 | 000000 |
| 3/8" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | 3/32" | 3/64" | Clockwise and Counterclockwise | 0000000 | 000000 |
| 1/2" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | 0000000 | 000000 |
| 1/2" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | 0000000 | 000000 |
Magnetic Torque-Limiting Shaft-to-Gear Couplings
Also known as hysteresis clutches, these couplings use magnetic force to brake, control tension, and prevent torque overload. They have few moving parts, so they last longer than mechanical couplings. Twist the adjustment ring to set the torque within the range listed, then lock the ring in place with the included set screw.
For technical drawings and 3-D models, click on a part number.
Torque, in.-lbs | Mounting Hole | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Min. | Max. | Max. Speed, rpm | OD | Overall Lg. | Torque-Limiting Direction | Thread Size | Thread Pitch, mm | For Shaft Dia. | Each | |
| 0.06 | 1.25 | 880 | 1 15/16" | 1 5/8" | Clockwise and Counterclockwise | M4 | 0.7 | 1/4" | 000000 | 0000000 |
| 0.18 | 5 | 300 | 2 3/4" | 2 7/16" | Clockwise and Counterclockwise | M4 | 0.7 | 3/8" | 000000 | 000000 |
| 0.5 | 10.6 | 220 | 3 5/16" | 2 1/2" | Clockwise and Counterclockwise | M5 | 0.8 | 000000 | 000000 | |
| 1 | 25 | 250 | 4 11/16" | 3 1/8" | Clockwise and Counterclockwise | M5 | 0.8 | 000000 | 000000 | |
| 2 | 50 | 200 | 5 1/4" | 3 1/8" | Clockwise and Counterclockwise | M5 | 0.8 | 000000 | 000000 | |
| 3 | 70 | 200 | 6 5/16" | 4 1/8" | Clockwise and Counterclockwise | 1/4"-20 | __ | 000000 | 000000 | |
Magnetic Torque-Limiting
Shaft-to-Gear Couplings with Shaft
Also known as hysteresis clutches, these couplings use magnetic force to brake, control tension, and prevent torque overload. They have few moving parts, so they last longer than mechanical couplings. Twist the adjustment ring to set the torque within the range listed, then lock the ring in place with the included set screw.
For technical drawings and 3-D models, click on a part number.
Torque, in.-lbs. | Mounting Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Shaft Dia. | Min. | Max. | Max. Speed, rpm | OD | Overall Lg. | Shaft Type | Torque-Limiting Direction | Thread Size | Thread Pitch, mm | Each | |
| 3/16" | 0.01 | 0.06 | 2,000 | 1" | 1 3/8" | D-Profile | Clockwise and Counterclockwise | M3 | 0.5 | 0000000 | 0000000 |
| 3/16" | 0.01 | 0.13 | 1,500 | 1" | 1 3/8" | D-Profile | Clockwise and Counterclockwise | M3 | 0.5 | 0000000 | 000000 |
| 5/16" | 0.03 | 0.44 | 1,050 | 1 7/16" | 1 3/4" | D-Profile | Clockwise and Counterclockwise | M3 | 0.5 | 0000000 | 000000 |
Torque-Limiting Shaft-to-Gear Couplings
Adjust your system's torque limit by hand. In the event of excess torque, these couplings slip to protect motors and drivetrains, and then resume driving once the load has been reduced. You can adjust the torque level without removing them from your shaft.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Torque | Max. Speed, rpm | OD | Overall Lg. | Wd. | Dp. | Torque-Limiting Direction | Mounting Hole Thread Size | Each | |
For Round Shafts | ||||||||||
| 1/4" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | __ | __ | Clockwise and Counterclockwise | 4-40 | 0000000 | 0000000 |
| 3/8" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | __ | __ | Clockwise and Counterclockwise | 4-40 | 0000000 | 000000 |
| 3/8" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 1/2" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 1/2" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 1/2" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 8-32 | 0000000 | 000000 |
| 5/8" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 5/8" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 8-32 | 0000000 | 000000 |
For Keyed Shafts | ||||||||||
| 1/4" | 16 in.-lbs. @ 50 rpm | 50 | 1" | 1 1/2" | 1/16" | 1/32" | Clockwise and Counterclockwise | 4-40 | 0000000 | 000000 |
| 3/8" | 25 in.-lbs. @ 50 rpm | 50 | 1 3/8" | 2 1/2" | 3/32" | 3/64" | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 1/2" | 50 in.-lbs. @ 50 rpm | 50 | 1 5/8" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | 6-32 | 0000000 | 000000 |
| 1/2" | 75 in.-lbs. @ 50 rpm | 50 | 2 1/4" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | 8-32 | 0000000 | 000000 |
Air-Powered Torque-Limiting Shaft-to-Gear Couplings
Often used in automated systems, these couplings are both air actuated and remotely adjustable, so you can adjust the torque setting even during operation. In the event of excess torque, they slip to protect motors and drivetrains, and then resume driving once the load has been reduced.
For technical drawings and 3-D models, click on a part number.
Keyway | Air Inlet | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Max. Torque | Max. Pressure, psi | Max. Speed | OD | Overall Lg. | Wd. | Dp. | Torque-Limiting Direction | Thread Size | Thread Type | Gender | Mounting Hole Thread Size | Each | |
For Round Shafts | ||||||||||||||
| 1/4" | 20 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/4" | 2 1/2" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 4-40 | 0000000 | 0000000 |
| 3/8" | 50 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/2" | 3 3/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 6-32 | 0000000 | 000000 |
| 1/2" | 100 in.-lbs. @ 100 psi | 100 | Not Rated | 2" | 3 5/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 6-32 | 0000000 | 000000 |
| 5/8" | 300 in.-lbs. @ 100 psi | 100 | Not Rated | 2 3/4" | 3 5/8" | __ | __ | Clockwise and Counterclockwise | 10-32 | UNF | Female | 8-32 | 0000000 | 000000 |
For Keyed Shafts | ||||||||||||||
| 1/4" | 20 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/4" | 2 1/2" | 1/16" | 1/32" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 4-40 | 0000000 | 000000 |
| 3/8" | 50 in.-lbs. @ 100 psi | 100 | Not Rated | 1 1/2" | 3 3/8" | 3/32" | 3/64" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 6-32 | 0000000 | 000000 |
| 1/2" | 100 in.-lbs. @ 100 psi | 100 | Not Rated | 2" | 3 5/8" | 1/8" | 1/16" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 6-32 | 0000000 | 000000 |
| 5/8" | 300 in.-lbs. @ 100 psi | 100 | Not Rated | 2 3/4" | 3 5/8" | 3/16" | 3/32" | Clockwise and Counterclockwise | 10-32 | UNF | Female | 8-32 | 0000000 | 000000 |
Electromagnetic Torque-Limiting Shaft-to-Gear Couplings
Use these with an overload sensor in an automated system to instantly disconnect power and prevent damage. Couplings also accelerate loads from zero to full speed in less than three milliseconds when the power is turned on.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | Max. Torque, in.-lbs. | Max. Speed, rpm | OD | Overall Lg. | Electrical Connection Type | Wire Lead Lg. | Voltage | Each | |
Clockwise Torque-Limiting Direction | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 30 | 1,400 | 1 1/4" | 1 1/8" | Hardwire | 15" | 24V DC | 000000 | 000000 |
| 5/16" | 30 | 1,400 | 1 1/4" | 1 1/8" | Hardwire | 15" | 24V DC | 000000 | 00000 |
| 3/8" | 75 | 1,400 | 1 3/4" | 1 1/2" | Hardwire | 18" | 24V DC | 000000 | 000000 |
| 1/2" | 75 | 1,400 | 1 3/4" | 1 1/2" | Hardwire | 18" | 24V DC | 000000 | 000000 |
Counterclockwise Torque-Limiting Direction | |||||||||
| 1/4" | 30 | 1,400 | 1 1/4" | 1 1/8" | Hardwire | 15" | 24V DC | 0000000 | 00000 |
| 5/16" | 30 | 1,400 | 1 1/4" | 1 1/8" | Hardwire | 15" | 24V DC | 0000000 | 00000 |
| 3/8" | 75 | 1,400 | 1 3/4" | 1 1/2" | Hardwire | 18" | 24V DC | 0000000 | 000000 |
| 1/2" | 75 | 1,400 | 1 3/4" | 1 1/2" | Hardwire | 18" | 24V DC | 0000000 | 000000 |
Electromagnetic Tensioning, Holding,
and Stopping Shaft-to-Gear Couplings
Also known as electric hysteresis brakes, these couplings use magnetic force to create drag to slow or stop the motion of your drive system. Use them with a current-limiting transformer to adjust the electrical current, which controls the amount of torque applied.
For technical drawings and 3-D models, click on a part number.
Keyway | Mounting Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shaft Dia. | Max. Torque, in.-lbs. | Max. Speed, rpm | OD | Overall Lg. | Shaft Type | Wd. | Dp. | Torque-Limiting Direction | Electrical Connection Type | Wire Lead Lg. | Voltage | Thread Size | Thread Pitch, mm | Each | |
| 0.118" | 0.2 | 1,990 | 1 1/4" | 1 5/8" | Round | __ | __ | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M2.5 | 4 | 0000000 | 0000000 |
| 0.197" | 0.8 | 1,200 | 1 13/16" | 2" | D-Profile | __ | __ | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M2.5 | 5 | 0000000 | 000000 |
| 0.197" | 1.3 | 760 | 2" | 2 1/8" | D-Profile | __ | __ | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M3 | 6 | 0000000 | 000000 |
| 0.276" | 3.5 | 570 | 2 3/8" | 3" | D-Profile | __ | __ | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M4 | 8 | 0000000 | 000000 |
| 0.394" | 11 | 590 | 3 5/8" | 4" | D-Profile | __ | __ | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M4 | 9 | 0000000 | 000000 |
| 0.472" | 19 | 500 | 4 7/16" | 4 7/8" | Keyed | 5/32" | 3/32" | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M5 | 10 | 0000000 | 000000 |
| 0.591" | 32 | 420 | 5 7/16" | 5 1/8" | Keyed | 3/16" | 1/8" | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M5 | 10 | 0000000 | 000000 |