Rewind operations require smooth, consistent torque to wind roll of all types of materials. Continuous slip applications also need clutches to efficiently dissipate heat. Nexen® tension control clutches, with closely held flatness and finish tolerances, combined with specific friction materials provide ultimate web tension control. Nexen® Tension Control Clutch, Air Actuated/Spring Return Heavy/Medium duty Multi-Caliper Open, 1700 in-lb Dynamic Torque, 1200 RPM Maximum, 1.937 in Bore, Bare Cast Aluminum/Black Oxide, 17.5 in OD x 13.65 in L Dimensions