Flexible Shaft Coupling Angular Misalignment 7 Degrees Bore Diameter 1 1/2 in Overall Length 3 in Maximum Speed 1 725 RPM Parallel Misalignment 0.125 in Outside Diameter 1 1/8 in Maximum Horsepower 0.5 hp Bore Type Round Center Element Material Rubber For Misalignment Type Angular Parallel Hub Material Steel Included Screws (2) Set Screw