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Torque limiters from market leader

EAS®-compact® torque limiter

  • Backlash-free
  • Load disconnecting
  • Ratchetting, synchronous or overload design
  • Also available made of stainless steel

EAS®-smartic® torque limiter

  • Installation space-optimized
  • Load disconnecting
  • In synchronous design with quick installation- or key hub




EAS®-element / EAS®-element clutch

  • Residual torque-free disconnecting
  • For save-guarding against excessive torques
  • Saves quick running and heavy drives in connection with large rotating masses

EAS®-Sp / EAS®-Sm / EAS®-Zr

  • Residual torque-free disconnecting
  • Con función de desconexión, embrague
  • Par regulable pneumática o electrónicamente

EAS®-axial torque limiter

  • Load disconnecting
  • Overload protection for linear movements
  • Precise limitation of tensile and pressure forces

ROBA®-slip hubs

  • Load holding
  • frictionally-locking






  • Continuous slip clutch /brake
  • Magnetic hysteresis principle
  • Precise torque limitation
  • Excellent repetitive accuracy
EAS-torque sensor - The torque-actuated signal transmitter

EAS®-torque sensor

  • torque-actuated signal transmitter
  • without mechanical separation of masses

mayr safety clutch - others

Other torque limiters

Here you will find many other versions of our safety clutches, including the following:

  • EAS-dutytorque
  • EAS-compact-R (RA)
  • ROBA-Co-Pro
  • EAS-NC
  • and many more...

Torque Limiting Clutches Glossary (brief description of specialist terms):

Overload protection via torque limitation
On collision occurrence, caused for example by programming errors, operating errors and operational malfunctions, extremely high torques are generated in the drive line which can destroy or damage the components. Torque limiting clutches disconnect the input and output in a few milliseconds if the set torque is exceeded. The destructive energy stored in the drive line is uncoupled. Damages are reduced to a minimum and often even avoided completely.

Load disconnecting clutches
Load disconnecting clutches work via positive-locking, The torque transmission takes place via detents (balls, rollers) which are pressed into recesses by springs, On overload, the detents come out of their recesses against the spring force; the positive locking is suspended and the torque transmission is interrupted.

Ratchetting clutches
These clutches disengage and re-engage at any point on the circumference (for example with a 15° division). They are ready for operation again as soon as the malfunction has been resolved.

Synchronous clutches
These clutches disengage on overload and re-engage after 360° at exactly the same point. When in operation, the input and the output always have the same angular position to one another. After the malfunction has been resolved, they are automatically ready for operation.

Overload clutches
These clutches disengage on overload and disconnect the input and output residual torque-free. They remain disengaged until they are re-engaged, either manually or using suitable devices. The energy stored in the rotating masses can slow down freely. Overload clutches are frequently the best choice for quick-running drives with high torques and large mass moments of inertia.

Load holding clutches
Typical load holding clutches transfer the torque via frictional locking or permanent magnetic fields. On overload, the input and output turn towards each other and limit the torque to the set value. Such clutches "slip through" with the set torque. The EAS-torque sensor is a special load holding clutch. It only turns by a few angular degrees on overload and then transfers the pending torque in full. A limit switch records the internal clutch movement and switches off the drive. The EAS-torque sensor therefore functions in the manner of a torque-actuated limit switch.

Frictionally-locking clutches
These clutches transfer the torque via friction. On overload, they slip through with the set torque.

Magnetic clutches
These clutches transfer the torque via magnetic forces, which are generated by permanent magnets, by magnetising a hysteresis material.

Torque sensor clutches
These clutches only turn by a few angular degrees on overload and then transfer the pending torque in full. A limit switch records the internal clutch movement and switches off the drive. Torque sensor clutches therefore function in the manner of a torque-actuated limit switch.