Air Clutch Mechanisms with Adapters - Regular Duty

Through Shaft Bored, Adapter Mount Friction Clutch

  • Friction clutch mechanism engages with air pressure, spring released when air is exhausted
  • Torque is linear in response to air pressure applied
  • Clutch mechanisms can be mounted Through/Mid Shaft or End of Shaft
  • Clutch mechanism slides on shaft and is fixed with set screws and a customer supplied key
  • Anti-rotation arm required to prevent rotation of the air housing
  • Clutch mechanisms are designed for horizontal mounting. If vertical mounting is required, consult engineering for options
  • Note: Clutch Mechanism DOES NOT support Adapter
  • Clutch mechanisms are designed for Connect/Disconnect, Cycling applications
  • Maximum RPM varies by model. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM.
Design Features
  • Clutch mechanisms are bored to suit up to the maximum shown (US & Metric) for easy installation
  • Machined face and bolt circle on adapter facilitate connection to bearing mounted pulley or gear
  • Available with either high or low* coefficient friction linings for same price
Clutch Mechanisms with Adapters
Clutch Mechanism Repair Kits & Parts
Click here or view PDF detail sheets
below for more information.

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Product No. Friction Lining Coefficent Torque @ 80 PSI (Lb-In) Maximum Bore with Standard Keyway
(Inches / Millimeters)
Length (Inches) Outside Diameter (Inches) Component Mounting Bolt Circle (Inches) Detail Sheet Request 3D CAD Model
M2R2R-STH High 190 0.500 / 12 2.31 2.58 1.875 View PDF request
M3R2R-STH High 555 1.000 / 24 4.34 3.50 2.500 View PDF request
M3R2R-STL Low* 370 1.000 / 24 4.34 3.50 2.500 View PDF request
M4R2R-STH High 1317 1.250 / 31 5.18 4.48 2.562 View PDF request
M4R2R-STL Low* 878 1.250 / 31 5.18 4.48 2.562 View PDF request
M5R2R-STH High 2587 1.438 / 38 5.69 5.69 3.125 View PDF request
M5R2R-STL Low* 1725 1.438 / 38 5.69 5.69 3.125 View PDF request
M6R2G-STH High 5397 2.000 / 52 6.54 7.63 5.375 View PDF request
M6R2G-STL Low* 3598 2.000 / 52 6.54 7.63 5.375 View PDF request

*Low coefficient lining models are offered for applications where a small amount of slip is required or a narrower torque range is necessary. For continuous slip or tension control applications, a SensiFlex® clutch should be used.

Additional Information

Mach III clutch mechanisms with adapters are solidly constructed to provide reliable power transmission. Clutch mechanism models can be adapted to accommodate customer needs. See our Custom Design Solutions page for more information. Mach III encourages contact with our engineering department before purchasing a clutch mechanism with adapter for use in a new or retrofit application.

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