The Grainger 16N054 is a 1/2 HP, 115V, 1725 RPM, 56C Frame, Open Drip Proof, Single Phase, Ball Bearing, Electric Motor. It has a NEMA standard 56C frame with a 1/2" diameter shaft and 1-1/4" long. The motor is totally enclosed, fan cooled (TEFC) with a cast iron frame and end bells. It operates on 115V, 60Hz single phase power with a full load current of 7.2 Amps. The motor is rated for continuous duty applications.