1/3 hp 3450 RPM 1-Speed 115V; 4.8 ampsShaft 1/2" x 2.0"Rotation: Reversible48N Frame5.6" DiameterMotor case length 6.593"Ball BearingsFlange Mount (2 screws 6-3/4" apart)24" wire leads1 Year mfg warrantySplit Phase Oil Burner Motor. Manual Overload Protection. Continuous Duty; Open Enclosure (Totally Enclosed Non-ventilated when mounted); Class B Insulation; 40C Ambient Temperature; 60 Hertz. SD55SBC4527R14B.