A. O. Smith is North America's leading independent supplier of hermetic motors for air conditioning and commercial refrigeration compressors. Quality A.O. Smith hermetic motors are used by many of the world's leading manufacturers of residential central air conditioners, commercial air conditioning equipment, commercial chillers, and heat pumps, as well as makers of walk-in coolers and refrigerated display cases.

From 5.5 inches to more than 15 inches in diameter and ranging in output from 1/2 to 500 horsepower, these precision rotor and stator units are engineered to withstand extremes in temperature, caustic and corrosive refrigerants and solvents, and deliver years of reliable service.