Amps: 18/6Bearings: BallDuty Cycle: ContinuousEfficiency: 0.902Enclosure Material: IronEnclosure Type: TEFC (Totally Enclosed Fan Cooled)Frame: 256THP: 15HP: 3-3/4Hz: 60Insulation Class: FManufacturer Model #: 256TTFNA7250Maximum Ambient Temperature: 40° CMotor Shell Length: 12.25"Mounting Orientation: HorizontalMounting: BaseNumber of Speeds: 2Overall Length: 25.4"Phase: 3Product Type: Three PhaseRotation: ReversibleRPM: 900/1800Service Factor: 1.15Shaft Diameter: 1-5/8"Shaft Length: 4.2"Volts: 460