Bosch Rexroth | AA10VO45DFR152R-VSC64N00
AA10VO45DFR1/52R-VSC64N00
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The AA10VO45DFR1/52R-VSC64N00 pump belongs to the A10VSO Variable Pumps series and is built by Bosch Rexroth for closed-loop hydraulic automation where precise flow adjustment is needed. Its geometric displacement of 45 cm³ per revolution defines the volume delivered per shaft turn and allows predictable circuit sizing. The unit is rated for a nominal pressure of 280 bar, giving it the capability to maintain continuous service in medium-pressure systems, while a peak pressure capacity of 350 bar permits short-term overload events without damage. A pressure port flange sized to SAE J518 1 inch provides a standardized outlet connection, and a suction port flange of SAE J518 1 1⁄2 inch matches common return line plumbing. Dry weight is 46 lb, so mounting structures must support that mass. The DFR1 control is preset to a differential pressure of 200 psi, enabling automatic swashplate adjustment as downstream load changes, and its maximum flow deviation is limited to 0.48 gpm, holding flow within a tight tolerance for actuators that require stable speed.
For further compatibility with system conditions, the pump accepts an inlet pressure up to 30 bar absolute, allowing installation near boost pumps or pressurized reservoirs, and it tolerates case drain pressure up to 2 bar absolute so housing flow can return through moderate back-pressure filters. When the shaft runs at maximum speed the pump can deliver 30.9 gpm, supplying high demand circuits, while continuous duty at 1800 rpm yields 21.4 gpm for typical industrial lines. Maximum shaft speed falls to 2600 rpm at full displacement, yet it can reach 3100 rpm when the swashplate is reduced, supporting intermittent high-speed operation without exceeding flow limits. At 280 bar the drive must transmit 200 Nm of torque, which determines motor and coupling selection, and the rotating group has a moment of inertia of 0.078 lb-ft², influencing acceleration response during rapid load changes.
Technical Specifications
Dfr1 Max Flow Deviation
0.48 gpm (1.8 L/min)
Dfr1 Δp Standard Setting
200 psi (14 bar)
Flow At 1800 Rpm
21.4 gpm (81 L/min)
Geometric Displacement
45 cm³/rev (2.75 in³/rev)
Max Case Drain Pressure (abs)
2 bar (29 psi)
Max Flow At Max Speed
30.9 gpm (117 L/min)
Max Inlet Pressure (abs)
30 bar (435 psi)
Max Speed (reduced Vg)
3100 rpm
Max Speed At Vg Max
2600 rpm
Max Torque (280 Bar)
200 Nm (148 lb-ft)
Moment Of Inertia
0.078 lb-ft² (0.0033 kg·m²)
Nominal Pressure
280 bar (4000 psi)
Peak Pressure
350 bar (5100 psi)
Pressure Port Flange
SAE J518 1 in
Suction Port Flange
SAE J518 1 1/2 in
Weight (without Fluid)
46 lb (21 kg)
1620 Old Apex Road
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