AA10VSO28DRG/31R-PKC62K01

The AA10VSO28DRG/31R-PKC62K01 pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies regulated hydraulic power to industrial motion circuits. A displacement of 28 cm³ per revolution defines how much fluid is moved each shaft turn, giving designers a clear basis for flow calculations. Its nominal pressure limit of 280 bar supports continuous duty, while a peak pressure rating of 350 bar allows brief overloads without damaging the housing or rotating group. The DRG differential pressure is set to 20 bar, establishing the control offset used by the load-sensing regulator to match pump output to system demand. A minimum inlet pressure of 0.8 bar prevents cavitation at the suction port, and a maximum inlet pressure of 10 bar protects shaft seals from excess static load. Clockwise rotation fixes the mounting orientation, and a shaft torque of 45 Nm at 100 bar indicates the mechanical effort required when the system operates at moderate pressure.

The pump can deliver a maximum flow of 84 L/min at its nominal speed, supporting actuators that need high volume under full displacement. When the drive speed is held at 1800 rpm, flow output is 50 L/min, allowing predictable performance in applications with limited prime-mover speed. A maximum permissible speed of 3600 rpm defines the upper mechanical limit for intermittent service, while the 3000 rpm ceiling at full displacement guards against excessive centrifugal forces during continuous operation. Required shaft power reaches 39 kW at nominal speed, guiding motor or engine sizing. Case drain pressure must stay below 2 bar to avoid back-pressure on internal leakage paths and maintain bearing life. Pressure port B is sized at 3/4 in according to ISO 6162-1, ensuring compatibility with standard flange fittings. Shaft torque rises to 125 Nm when circuit pressure reaches 280 bar, describing the mechanical load the drive train must withstand at full system pressure.