Voltage Supply: 400V Motor Power: 550W Run Speed: 2 Pole (2820RPM) Shaft Diameter: 1/2inch (12.7mm) Shaft Length: 54mm Shaft Rotation: Reversible Body Length: 141mm Flange Fitted: Yes Flange Spigot: 164mm Mounting Holes PCD: 184mm Pump Hub: No Pump Hub Size: n/a These may have a couple of days lead time. Call 01526 399711 or email for more information.