Torque capacity at 80 psi: 440 in-lbs. Maximum Operating Speed up to 1800 rpm. Thermal Horsepower rating of: 0.515 @ 1800 rpm. Heat Sink capacity of 30,000 Ft. Lbs. Standard or Low Coefficient Facings. Standard Bore Size: 1.125 inches. Split friction facings for easy replacement without brake removal or disassembly. Thru-shaft design can be flange mounted or shaft mounted with a torque pin.