Power 5 HP Definite Purpose Special Compressor Duty Voltage 208-230 VAC Amperage 22.5-22 Amps Speed 3450 RPM Phase 1 Rotation CCW Service Factor 1.0 Bearings Ball Enclosure ODP Duty Continuous Frame 56 Mount Base Shaft 7/8" diam. x 2-1/4" w/ 3/16" keyway Size 11-1/4" x 6-1/2" x 6-1/2"