Heavy Duty Flexible Clutch Couplings

Heavy Duty Flexible Clutch Couplings


  • Friction type heavy duty clutch engages with air pressure, spring released when air is exhausted
  • Torque is linear in response to air pressure applied


  • Set screws and customer supplied key connect the heavy duty clutch mechanism to one shaft and the coupling hub to a fully supported second shaft
  • Anti-rotation arm required to prevent rotation of the air housing
  • Heavy duty clutch mechanisms are designed for horizontal mounting. If vertical mounting is required, consult engineering for options
  • Note: Heavy Duty Clutch Mechanism DOES NOT support flexible coupling


  • Heavy duty clutch mechanisms are suitable for cycling applications connecting and disconnecting two fully supported shafts
  • Maximum RPM varies by model. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM.

Design Features

  • Elastomeric element compensates for up to 3 degrees of angular misalignment and up to 0.040 parallel offset between shafts
  • Both heavy duty clutch mechanism and coupling bored to suit up to the maximum shown (US & Metric) to accept differing shaft sizes
  • Available with either high or low* coefficient friction linings for same price
  • Splined drive and toothed friction discs for heavy duty service 

MACH III Products