Air Engaged Clutches - NEMA Frame

Air Engaged Clutches – NEMA Frame

C-Face Mounted Friction Clutches

Function: Connect, Disconnect
Drive Arrangement: Motor to Gear Reducer (Gear Box)


  • Air pressure compresses drive and friction discs to produce torque.
  • Torque is linear in response to air pressure applied.
  • Release springs provide positive disengagement when air is exhausted.


  • Mounts between a c-face motor and gear reducer.
  • Not suitable for belt drive (pulley output) applications.
  • Designed for horizontal mounting. If vertical mounting is required, consult engineering for options.


  • Air engaged friction clutches are suitable for connect/disconnect, cycling applications.
  • Maximum RPM varies by model and is listed on the PDF detail sheet (see table below). Consult engineering if the intended application exceeds the listed maximum RPM.

Design Features

  • Air engaged clutches are made-to-order with any bore size up to the maximum shown for easy installation.
  • Models listed have enclosed, aluminum housings.
  • Clear anodized and stainless housing versions are also available. Contact engineering for details.
Product CodeTorque @ 80 PSINEMA Frame Size Output Shaft & Input BoreDetail SheetRequest 3D CAD Model
C3C2R-56H573 lb-in56C0.625 inView PDFRequest
C3C2R-14H573 lb-in143TC, 145TC0.875 inView PDFRequest
C5C2R-18H2,587 lb-in182TC, 184TC1.125 inView PDFRequest
C5C2R-21H2,587 lb-in213TC, 215TC1.375 inView PDFRequest