Marathon Motors Fan Blower Motor, B337, 056C17D5348, 1HP, 1800RPM, 277V, 1PH, 56 FR, DPMarathon's line of Heating, Ventilation, and Air Conditioning Motors are designed with dynamically balanced rotors for reduced vibration and quiet operation. Product Specifications BRANDMarathon Motors MANUFACTURERS PART NUMBERHG694 HORSEPOWER1 MOTOR RPM 60Hz1800 VOLTAGE277 PHASE1 FRAME56 ENCLOSURE TYPEOpen/Drip Proof HERTZ60 SPEEDS1 ROTATIONCCW RATED RPM1800 MOUNTINGResilient Base - Extended Studs BEARING TYPEBall DRIVE END BEARING SIZE6203 OPPOSITE END BEARING SIZE6203 INSULATION CLASSB SERVICE FACTOR1.25 AMBIENT TEMP C40 DUTYContinuous is_motorYes WEIGHT LBS31 RPM RANGE1701-1800 OPPOSITE END BEARINGBall FL AMPS5.6 ASSEMBLYF1 Only ENCLOSUREDP