Overview Product Description Marathon B337 Fan & Blower Motor Applications: Residential & commercial fans & blowers where low starting torque is required (air conditioning, roof ventilators, & exhaust fans). Features: Ball bearings, Rolled Steel, Resilient "cradle" style base, 3/4" Thru-bolts Shaft End, Continuous Duty, Capacitor Start Induction Run. 1 HP 1725 RPM 56 FRAME SINGLE PHASE 277 VOLT 5.6 AMP 1.25 S. F. SINGLE SPEED DRIP PROOF SELECTIVE CCW ROTATION RESILIENT BASE - EXTENDED STUDS 0.625" X 1.91" SHAFT KEYED C-DIMENSION 11.85" Cross Reference: 056C17D5348 Product Videos Custom Field Product Reviews