The Grainger 16N059 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 1.125" shaft diameter and 1.937" shaft height. 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 9.8 Amps. The motor is rated for continuous duty applications with a service factor of 1.15. It has Class B insulation and ball bearings for quiet, smooth operation. The 16N059 is ideal for driving pumps, fans, compressors, conveyors, and other industrial machinery.