Noncontact-Magnetic Electric Brakes
Create drag to slow or stop the motion of your drive system using magnetic force. Because torque is transmitted by magnetic force without contact, there is no wear, so these brakes give you accurate, repeatable braking. Also known as electric hysteresis brakes, they are often used in tensioning, holding, and stopping applications. The brake engages when the power is on and releases when it is off. The amount of electrical current determines the amount of torque that is applied by the brake. Use these brakes with a current-limiting transformer.
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. | Electric Brake Type | Drive Direction | Electrical Connection Type | Wire Lead Lg. | Voltage | Thread Size | Thread Pitch, mm | Each | |
Through Shaft | ||||||||||||||||
| 0.118" | 0.2 | 1,990 | 1 1/4" | 1 5/8" | Round | __ | __ | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M2.5 | 0.45 | 0000000 | 0000000 |
| 0.197" | 0.8 | 1,200 | 1 13/16" | 2" | D-Profile | __ | __ | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M2.5 | 0.45 | 0000000 | 000000 |
| 0.197" | 1.3 | 760 | 2" | 2 1/8" | D-Profile | __ | __ | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M3 | 0.5 | 0000000 | 000000 |
| 0.276" | 3.5 | 570 | 2 3/8" | 3" | D-Profile | __ | __ | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M4 | 0.7 | 0000000 | 000000 |
| 0.394" | 11 | 590 | 3 5/8" | 4" | D-Profile | __ | __ | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M4 | 0.7 | 0000000 | 000000 |
| 0.472" | 19 | 500 | 4 7/16" | 4 7/8" | Keyed | 0.158" | 0.098" | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M5 | 0.8 | 0000000 | 000000 |
| 0.590" | 32 | 420 | 5 7/16" | 5 1/8" | Keyed | 0.197" | 0.124" | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24V DC | M5 | 0.8 | 0000000 | 00000000 |
Electric One-Way Clutches
Unlike mechanical clutches, these clutches let you electrically control when torque is transmitted. They transfer torque in one direction and spin freely in the opposite direction, so they’re useful in applications where you don’t want motion to reverse such as in backstopping, indexing, and overrunning. When you remove power from these clutches, they disengage, cutting torque to your pulley, sprocket, gear, or other mounted component without stopping your drive shaft.
| For Shaft Dia. | Max. Torque, in.-lbs. | Max. Speed, rpm | OD | Overall Lg. | Electric Clutch Type | Electrical Connection Type | Wire Lead Lg. | Voltage | Current | Each | |
Clockwise Drive Direction | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Through Shaft | |||||||||||
| 1/4" | 30 | 1,400 | 1 1/4" | 1 1/8" | Power On | Hardwire | 15" | 24V DC | 0.14A | 0000000 | 000000 |
| 5/16" | 30 | 1,400 | 1 1/4" | 1 1/8" | Power On | Hardwire | 15" | 24V DC | 0.14A | 0000000 | 00000 |
| 3/8" | 75 | 1,400 | 1 3/4" | 1 1/2" | Power On | Hardwire | 18" | 24V DC | 0.14A | 0000000 | 000000 |
| 1/2" | 75 | 1,400 | 1 3/4" | 1 1/2" | Power On | Hardwire | 18" | 24V DC | 0.14A | 0000000 | 000000 |
Counterclockwise Drive Direction | |||||||||||
Through Shaft | |||||||||||
| 1/4" | 30 | 1,400 | 1 1/4" | 1 1/8" | Power On | Hardwire | 15" | 24V DC | 0.24A | 0000000 | 00000 |
| 5/16" | 30 | 1,400 | 1 1/4" | 1 1/8" | Power On | Hardwire | 15" | 24V DC | 0.24A | 0000000 | 00000 |
| 3/8" | 75 | 1,400 | 1 3/4" | 1 1/2" | Power On | Hardwire | 18" | 24V DC | 0.24A | 0000000 | 000000 |
| 1/2" | 75 | 1,400 | 1 3/4" | 1 1/2" | Power On | Hardwire | 18" | 24V DC | 0.24A | 0000000 | 000000 |
Soft-Start Centrifugal Clutches
Disengaged until they rotate fast enough to transmit torque, these clutches give the components on your driven side a smooth start by allowing the driving side to start without load. Fasten them to your shaft by tightening the set screws, which bite into the shaft to hold it.
Shaft-to-shaft clutches also act as a shaft coupling, allowing you to regulate torque transmission between two shafts.
Through-shaft clutches regulate torque transmission between an input shaft and a mounted component.
Clutches with support rollers are quieter and last longer than other centrifugal clutches because the contact points are supported by urethane rollers to prevent slipping.
Clutches with a pulley come ready to install a V-belt.
Spring kits allow you to change the speed at which the clutch engages.
For technical drawings and 3-D models, click on a part number.
Rollers
and Pulley
Misalignment Capability | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Shaft Type | Engagement Speed, rpm | Max. Speed, rpm | Max. Power, hp | Pitch Dia. | For Belt Trade Size | Parallel | Angular | OD | Overall Lg. | Keyway Wd. x Keyway Dp. | Material | Drive Direction | Each | |
Shaft-to-Shaft Clutches with Engagement Springs | |||||||||||||||
| 5/8" | Keyed | 830 | 3,600 | 13 | __ | __ | 0.003" | 0.25° | 4 3/16" | 2 1/2" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 0000000 |
| 3/4" | Keyed | 830 | 3,600 | 13 | __ | __ | 0.003" | 0.25° | 4 3/16" | 2 1/2" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 1" | Keyed | 830 | 3,600 | 13 | __ | __ | 0.003" | 0.25° | 4 3/16" | 2 1/2" | 1/4" x 1/8" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
Shaft-to-Shaft Clutches with Support Rollers | |||||||||||||||
| 1/2" | Round | 1,100 | 1,750 | 7.5 | __ | __ | __ | __ | 3 63/64" | 3 19/64" | __ | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 5/8" | Keyed | 1,100 | 1,750 | 7.5 | __ | __ | __ | __ | 3 63/64" | 3 19/64" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 3/4" | Keyed | 1,100 | 1,750 | 7.5 | __ | __ | __ | __ | 3 63/64" | 3 19/64" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 1" | Keyed | 1,100 | 1,750 | 7.5 | __ | __ | __ | __ | 3 63/64" | 3 17/64" | 1/4" x 1/8" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
Through-Shaft Clutches with Support Rollers and Pulley | |||||||||||||||
| 5/8" | Keyed | 1,100 | 1,750 | 7.5 | 2.8" | 4L, A | __ | __ | 3 63/64" | 1 7/8" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 5/8" | Keyed | 1,100 | 1,750 | 7.5 | 3.3" | 4L, A | __ | __ | 3 63/64" | 1 7/8" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 3/4" | Keyed | 1,100 | 1,750 | 7.5 | 2.8" | 4L, A | __ | __ | 3 63/64" | 1 7/8" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| 3/4" | Keyed | 1,100 | 1,750 | 7.5 | 3.3" | 4L, A | __ | __ | 3 63/64" | 1 7/8" | 3/16" x 3/32" | Steel | Clockwise and Counterclockwise | 00000000 | 000000 |
| Includes | Each | |
| Four Green Springs (830 RPM Engagement), Four Red Springs (1200 RPM Engagement), Four Orange Springs (1800 RPM Engagement) | 0000000 | 000000 |
Electric Clutches for Face-Mount Motors
Designed to mount directly to a NEMA face-mount motor, these clutches let you electrically control when to transmit power without turning off your motor. When you remove power to these clutches, they stop power transmission by disconnecting your motor's load. Fasten them to your motor's shaft using the set screws, which bite into the shaft for a tight hold. To the other side, attach a gearbox or couple a gear, sprocket, pulley, or other component.
Controllers (sold separately) convert an AC input into a DC output to engage and disengage these clutches. They mount inside a conduit box (sold separately).
Conduit boxes (sold separately) attach directly to these clutches to protect wiring from dust and moisture.
Covers (sold separately) change the open design of these clutches into a totally enclosed fan-cooled unit, protecting them from dust and moisture.
For technical drawings and 3-D models, click on a part number.
| Max. Power | Max. Speed, rpm | Voltage | For Motor Frame Size | OD | Overall Lg. | Material | Drive Direction | Shaft Diameter | Keyway Wd. × Keyway Dp. | Electrical Connection Type | Wire Lead Lg. | Specifications Met | Each | |
Through Shaft | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4 hp | 3,600 | 90V DC | NEMA 48Y, NEMA 56C | 6 3/4" | 6 3/4" | Steel | Clockwise and Counterclockwise | 5/8" | 3/16" × 3/16" | Hardwire | 36" | UL Listed, C-UL Listed | 00000000 | 000000000 |
| 3 hp | 3,600 | 90V DC | NEMA 48Y, NEMA 56C | 6 3/4" | 6 3/4" | Steel | Clockwise and Counterclockwise | 5/8" | 3/16" × 3/16" | Hardwire | 36" | UL Listed, C-UL Listed | 00000000 | 00000000 |
Input | Output | |||||||
|---|---|---|---|---|---|---|---|---|
| Voltage | Frequency, Hz | Voltage | Current, A | Wire Lead Lg. | Temperature Range, °F | Specifications Met | Each | |
| 120V AC | 50/60 | 90V DC | 0.8 | 5 1/2" | -20° to 110° | UL Listed, C-UL Listed | 00000000 | 0000000 |
| Number of Knockouts | Knockout Trade Size | Lg. | Wd. | Ht. | Material | Environmental Rating | Specifications Met | Each | |
| 2 | 1/2 | 2 1/4" | 3 1/4" | 2 3/16" | Galvanized Steel | NEMA 4 | UL Listed, C-UL Listed | 00000000 | 000000 |
| Material | Includes | Each | |
| Steel | Four Mounting Screws, Two Covers, Two Gaskets | 00000000 | 000000 |