"This Leeson reversible electric motor produces 2 HP and 3450 RPM. For use where water and dust exposure is minimal. Ideally suited for use on pumps, compressors, blowers, fans and other standard industrial applications. U.S.A. Rated RPM 3,450, Amps 12 @ 230V, Capacitor Start Yes, Shank Diameter in. 5/8, Shank Length in. 1 7/8, Rigid Base Yes, Motor Phases Single, Reversible Yes, Frame Type NEMA 56, HP 2. Durable rolled steel construction Meets or exceeds NEMA service factors Double shielded ball bearings Continuous duty Thermally protected ratings UL recognized component listings and CSA certified Service Factor 1.15 5/8in shaft"