The Grainger 16R066 is a 3/4 HP, 115V, 1725 RPM, 56C Frame, Open Drip Proof, Single Phase, Ball Bearing Electric Motor. It has a NEMA standard 56C frame with a 1.15 service factor. The motor is rated for continuous duty applications with a 40 degree C ambient temperature rating. It has Class F insulation and a C-face endshield for easy mounting.