1/2HP Premium Efficiency Inverter Rated Industrial Motor, Voltage:208-230/460, Phase:3, Hertz:60, Amps:1.73-1.57/0.78, Frame:W56C, Mounting:Rigid Base/C-Face, Bearing:Ball, Body:Totally Enclosed Fan-Cooled, RPM:3435/-1Speed, Rotation:Reversible, Shaft:5/8"Key X 1-7/8", Dims of Motor:9-21/32"Length Less Shaft, 11-9/16"Overall Length, Weight:18.10 Pounds, Made In Brazil, Mfg/Box.