Bosch Rexroth | AA10VSO10DR52R-PKC64N00
AA10VSO10DR/52R-PKC64N00
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The AA10VSO10DR/52R-PKC64N00 variable displacement pump is built by Bosch Rexroth for the A10VSO Variable Pumps series and supplies hydraulic actuators with modulated flow in automated machinery. It operates in an open circuit so return oil is directed to tank rather than the inlet side. DR pressure control adjusts displacement to hold target pressure, and the maximum hysteresis of 45 psi maintains consistent response when the load varies. Discharge moves from port S to port B, while clockwise rotation matches right-hand engine drives. A parallel-key shaft end provides positive torque transfer to the prime mover, and the unit omits a through drive so no secondary pump can be stacked. System feedback is connected at pilot port X by a 7/16-20 UNF-2B thread. Continuous duty is permitted up to a nominal pressure of 4,000 psi, and housing leakage returns through the drain line where pressure must remain below 29 psi to protect the shaft seals.
Transient loads can reach a peak pressure of 5,100 psi, allowing the pump to survive brief overloads without deforming the rotating group. On the suction side, absolute pressures may range from 12 psi to 435 psi; the lower figure prevents cavitation during cold starts, while the upper figure supports circuits with pressurized boost lines. Fluid temperature is permitted up to 239 °F, which covers typical industrial oil-cooler settings and temporary heat spikes. Short-term viscosity limits span 10 mm²/s to 1,600 mm²/s, so the pump can turn safely when oil is either very thin after extended operation or highly viscous at low ambient temperature. Together, these boundaries set the operating envelope for automation tasks that need predictable flow under changing environmental or load conditions, ensuring the axial piston mechanism retains film lubrication, volumetric efficiency, and long service life.
Technical Specifications
Case Drain Pressure, Max
29 psi (2 bar)
Circuit Type
Open Circuit
Control Type
DR Pressure Control
Direction Of Flow
S To B
Dr Hysteresis, Max
45 psi (3 bar)
Inlet Absolute Pressure, Max
435 psi (30 bar)
Inlet Absolute Pressure, Min
12 psi (0.8 bar)
Max Fluid Temperature
239 °F (115 °C)
Maximum Viscosity (short-term)
1600 mm2/s
Minimum Viscosity (short-term)
10 mm2/s
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Pilot Port X Thread
7/16-20 UNF-2B
Rotation Direction
Clockwise (R)
Shaft End Type
Parallel With Key (K)
Through Drive
None (N00)
1620 Old Apex Road
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