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OPC-N Series Electromagnetic Mag-Particle Clutches

Sample image only. Product may differ
Ogura’s OPC-N Series Electromagnetic Magnetic Particle Clutches are designed for applications requiring precise and stable torque control independent of rotational speed.
The clutch uses magnetic particles within the unit to transmit torque, allowing smooth and proportional torque transfer based on applied current. This design enables accurate control of tension and slip without the engagement shock associated with friction-type clutches. The OPC-N series operates on 24 VDC and is available in compact sizes suited for light torque applications. Bore options and mounting configurations support integration into small machinery and control systems.
The series is suited for applications where repeatable torque control and smooth operation are critical.
| Model No. | Ogura P/N | Static Torque (ft-lbs) | max RPM | Bore (inch) | Volts/Watts | Keyway | Wgt (lbs) |
|---|---|---|---|---|---|---|---|
| OPC-5N | 25244800 | 0.367 | 1800 | 5mm shaft | 24 / 12 | D shaft | 1.50 |
| OPC-10N | 25439200 | 0.741 | 1800 | 7mm shaft | 24 / 14 | D shaft | 1.80 |
| OPC-20N | 25276100 | 1.5 | 1800 | 12mm shaft | 24 / 18 | D shaft | 2.80 |
| OPC-40N | 25444300 | 3 | 1800 | 12mm | 24 / 22 | Set screw | 5.30 |
| OPC-40A | 254476 | 3 | 1800 | 12mm | 24 / 15 | Set screw | 5.30 |
| OPC-80N | 25441800 | 6 | 1800 | 15mm | 24 / 33 | Set screw | 6.80 |
| OPC-80A | 254484 | 6 | 1800 | 15mm | 24 / 19 | Set screw | 6.80 |
Key Design Features
- Magnetic particle technology for smooth torque transmission
- Torque proportional to applied current
- Stable torque independent of slip speed
- Compact design for small machinery integration
- 24 VDC operation across all models
- Available in multiple bore sizes from 5 mm to 15 mm
- Options for D-shaft and set screw mounting
- Designed for precise tension and torque control
Applications
- Tension control systems - Used to maintain consistent tension in web handling, wire, or film processing systems.
- Winding and unwinding equipment - Provides controlled slip to regulate material winding speed and tension.
- Packaging machinery - Enables precise torque control for feeding and handling materials.
- Test and measurement equipment - Used where controlled torque loading is required for testing components.
- Small automation systems - Supports smooth torque control in compact automated assemblies.