Ogura industrial
Multiple Disc Electromagnetic Clutches
Stacking several friction discs multiplies the torque, giving one of the smallest sizes for the torque of any clutch. They run dry or in oil, which makes them ideal inside multi-speed gearboxes and machine tools.

- 18 – 12,000 NmMD / MW torque range
- wet or dryoperation
- compacthigh torque per size
The range
The Range
MD and MW Series
Multiple disc clutches and brakes for starting or stopping at speed; separate drive cup for easy gear or pulley connection.
- 18 – 12,000 Nm
- Separator springs for quick release
How it works
How It Works
Engaging
Power to the coil turns it into an electromagnet. The magnetic flux crosses a small air gap and pulls the armature hard against the friction face, so the two turn together – electrically switched, but transmitting torque mechanically.
Releasing
Switch the power off and springs pull the armature back, opening a small air gap so the parts turn freely. Cycling is just switching the coil on and off; once engaged there is no slip, so torque transfer is 100% efficient.
Why multiple disc
Big Torque, Small Package
Compact
Several discs give one of the best torque-to-size ratios.
Wet or Dry
Run in a gearbox oil bath or stand-alone.
Fast in Oil
Channels in the discs let oil clear quickly for fast response.
Cool Running
In oil, the oil carries heat away from the discs.
Literature & related
More Information
- Industrial clutches and brakes
AM, MIC, V, MMC, MZ and MD series · PDF, 3.8 MB
Not Sure Which One You Need?
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