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Flexible Clutch Couplings Regular Duty Operation Friction clutch coupling engages with air pressure, spring released when air is exhausted Torque is linear in response to air pressure applied Mounting Set screws and customer supplied key connect the clutch mechanism to one shaft and the coupling hub to a second, fully supported shaft Anti-rotation arm required to prevent rotation of the air housing Clutch couplings are designed for horizontal mounting. If vertical mounting is required, consult engineering for options Note: Clutch coupling mechanism DOES NOT support flexible coupling half Applications Flexible clutch couplings connect/disconnect 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 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

Clutch Coupling Repair Kits & Parts Click here or view PDF detail sheets below for more information.

Product No. Friction Lining Coefficent Torque @ 80 PSI (Lb-In) Maximum Bore with Standard Keyway (Inches / Millimeters) Length (Inches) Outside Diameter (Inches) Detail Sheet Request 3D CAD Model C3H2R-STH High 555 1.000 / 24 7.16 4.00 C3H2R-STL Low* 370 1.000 / 24 7.16 4.00 C4H2R-STH High 1317 1.250 / 31 9.30 5.13 C4H2R-STL Low* 878 1.250 / 31 9.30 5.13 C5H2R-STH High 2587 1.438 / 38 9.70 5.69 C5H2R-STL Low* 1725 1.438 / 38 9.70 5.69 C6H2G-STH High 5397 2.000 / 52 12.14 7.63 C6H2G-STL Low* 3598 2.000 / 52 12.14 7.63

*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.

Mach III flexible clutch couplings are solidly constructed to provide reliable power transmission. Flexible clutch coupling 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 flexible clutch coupling for use in a new or retrofit application.