U-GRH-450-PDGC-176

The U-GRH-450-PDGC-176 hydraulic motor is manufactured by Vickers as part of the Hydraulic Motors series. It converts pressurized fluid into rotation for hydraulic automation tasks such as conveyor drives and machine tool feeds. The displacement is 450 cm³ per revolution, setting the volume flow required to achieve a given speed. A rated speed of 255 rpm specifies the continuous rotation limit under nominal operating conditions. The motor delivers a rated torque of 1090 N·m, supplying steady output for work circuits. A rated working pressure of 17 MPa defines the normal supply pressure, and the mass of 33 kg influences mounting hardware selection.

Maximum operating figures provide reserve capacity for transient loads. The motor withstands a maximum working pressure of 22.5 MPa, outlining the highest supply pressure allowed for short durations. It generates a maximum torque of 1410 N·m to handle brief overloads without damage. A maximum speed of 340 rpm indicates the upper rotational boundary for intermittent duty cycles. The allowed back pressure is 11.2 MPa, so return-line components must keep case pressure below this value to prevent seal stress and efficiency loss.