AA10VSO100DRG/31R-PKC62K03

The AA10VSO100DRG/31R-PKC62K03 pump is built by Bosch Rexroth within the A10VSO Variable Pumps series. It serves as a variable-displacement axial piston unit for hydraulic automation where flow has to match changing load demands. The pump delivers a displacement of 100 cm³ per revolution, giving consistent volumetric output when the swashplate is set to maximum. At 1800 rpm and full displacement it supplies 180 L/min, providing adequate circuit flow for medium-sized actuators. A nominal pressure rating of 280 bar supports continuous duty without excess stress on seals, while 84 kW of shaft power at the same speed and pressure indicates the drive size required. The suction port is dimensioned at 2 1/2 inches to reduce inlet losses, and the working port measures 1 1/4 inches to match common line sizes in industrial machinery. When operated at full displacement, the peak shaft speed is limited to 2000 rpm so oil velocity remains within safe limits. A moment of inertia of 0.0167 kg·m² minimizes drive-motor starting torque and eases speed changes during rapid control cycles.

System designers can raise pressure to 350 bar for short periods, enabling the pump to overcome transient load spikes without cavitation. When the displacement is reduced, the permissible speed climbs to 2400 rpm, allowing higher flow at partial swashplate angles without exceeding piston velocities. The unit develops 445 Nm of hydraulic torque at 280 bar and full displacement, giving a direct measure of load transmitted to the drive shaft. The mechanical interface can accept up to 750 Nm of input torque, so the coupling can handle start-up and overshoot conditions. Axial loads up to ±4000 N and radial forces of 2300 N are tolerated, which supports belt drives or gear trains that impose combined loading on the shaft. Rotary stiffness of 135 303 Nm/rad limits angular deflection, maintaining accurate swashplate positioning under fluctuating pressure. A case volume of 2.2 L stores leakage oil for bearing lubrication and thermal buffering before it is routed back to the reservoir.