Electrical Type: Three Phase HP: 1/2 KW: 0.37 RPM: 1725 Frame: 56CZ Diameter: 6.5" Enclosure: ODP Phase: Three Voltage: 575 Rotation: REV Overload: None Material: Rolled Steel Bearings Type: Ball / Ball Bearings SE Type: Ball Bearings OSE Type: Ball Mounting: Round Amperage: .90 Shaft Type: Keyed Shaft Extension: 1.250" Shaft Diameter: 0.625"