The Grainger 16T502 is a 1/4 HP, 115V, 3,450 RPM, 56C frame, open drip-proof, single phase, sleeve bearing electric motor. It has a NEMA 48Y frame with a 1/2" diameter shaft and 1/4" keyway. The motor is thermally protected and rated for continuous duty applications. It measures approximately 5-3/4" long by 4-1/2" wide by 5-1/4" high. This electric motor can be used for a variety of light industrial applications requiring up to 1/4 horsepower.