Electrical Type: Three Phase HP: 20 KW: 14.9 RPM: 1775 Frame: 256T Enclosure: ODP Phase: Three Voltage: 230/460 Rotation: REV Overload: None Material: Rolled Steel Bearings Type: Ball / Ball Bearings Size: 6309-2Z-J/C3 / 6309-2Z-J/C3 Bearings SE Type: Ball Bearings OSE Type: Ball Bearings SE Size: 6309-2Z-J/C3 Bearings OSE Size: 6309-2Z-J/C3 Mounting: Horizontal / Footed Amperage: 48/24 Shaft Type: Single Assembly: F1 Definite Purpose ACCU-SERIES|Three Phase Open Dripproof (ODP)|Inverter Duty|20:1 (3-60 HZ) Speed Range Variable Torque|5:1 (12-60 Hz) Speed Range Constant Torque