Chain Coupling Sprocket Chain Number 60 Bore Diameter 2 7/16 in Bore Type Split Taper Bushing Horsepower @ 100 RPM 13.48 hp Outside Diameter with Chain 5.625 in Hub Diameter 3 7/8 in For Bushing Size B For Chain Pitch 3/4 in Keyway Depth Not Applicable Keyway Width Not Applicable Maximum Angular Misalignment 1 Degrees Number of Teeth 20 Parallel Misalignment 0.005 in System of Measurement Inch Axial Motion 0.06 in For Cover Part Number AL60