Torque capacity at 80 psi: 840 in-lbs. Maximum Operating Speed up to 1800 rpm. Thermal Horsepower rating of: 1.300 @ 1800 rpm. Heat Sink capacity of 60,000 Ft. Lbs. Standard or Low Coefficient Facings. Standard Bore Size: 1.375 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.