3/4 hp 1725 RPM 1-Speed 230V; 5.4 ampsShaft 1/2" x 1.56"Rotation: CW shaft end6.5" DiameterMotor case length 7.44"Ball BearingsResilient Ring Mount1 Year mfg warrantySplit Phase Evaporative Cooler Motor. Automatic Overload Protection. Continuous Duty; Open Drip Proof Enclosure; Class B Insulation; 40C Ambient Temperature; 60 Hertz. S063STJ7129801B.