This is a single-phase motor that has a rigid base and 5/8 keyed shaft. This is a 3 hp SPL electric motor that is commonly used for home and small shop air compressors. YOUR COMPRESSOR, COMPRESSOR PARTS, & ACCESSORY SUPERSTORE! Blow Guns & Tire Inflators.Throttle Cont Cables & Valves. New 3 HP 3450 RPM Air Compressor 60 Hz Electric Motor 115-230 Volts Century B383. Century 3 Horsepower 56 Frame 3450 RPM Electric Air Compressor Motor Brand new Century 3 horsepower electric motor. Shaft: 5/8" x 1-7/8" with Keyway. Bolt Hole Dimensions: 3" x 5" Center to Center. Open Drip Proof (ODP) Enclosure. California Residents Warning: This product contains or may contain chemicals including lead known in the state of California to cause cancer, birth defects, or other reproductive harm. California law requires this warning be given to all customers in the state of California. California Health and Safety Code 25249.5 et seq. If for any reason there is an issue with your order we will contact you right away. Feedback At Compressor Source we strive for great customer service and to sell the best quality parts at the lowest prices possible. The item "New 3 HP 3450 RPM Air Compressor 60 Hz Electric Motor 115-230 Volts Century B383" is in sale since Tuesday, October 21, 2014. This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\Electric Motors\General Purpose Motors". The seller is "compressor-source" and is located in Lincoln, Nebraska. This item can be shipped to United States.