3hp 3600RPM Aeration Farm Motor 145T Frame 230volts AO Smith/Century Electric Motor # K116 3 hp 3600 RPM, 15.4 amps, 230 Volts 60 hz. NEMA 145T Frame Keyed Shaft 7/8" Diameter x 2 1/4" TEAO Totally Enclosed Air Over - Service Factor = 1.0; Reversible Thermal Protection = Automatic 1 Year Manufacture Warranty