Jaw Coupling Hub, Coupling Size L150, Outside Diameter 3 3/4 in, Coupling Overall Length 4 1/2 in, System of Measurement Inch, Hub Material Carbon Steel, Maximum Speed 5,000 RPM, Horsepower @ 100 RPM 2 hp (Buna-N Spider), 3 hp (Urethane Spider), 5.9 hp...