Bosch Rexroth | AA10VO71DFR131R-VSC92N00
AA10VO71DFR1/31R-VSC92N00
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The AA10VO71DFR1/31R-VSC92N00 axial piston pump belongs to the A10VSO Variable Pumps series and is produced by Bosch Rexroth. It supplies controlled hydraulic flow in mobile and industrial drives. A displacement of 71 cm³ per revolution establishes its volumetric output per shaft rotation. DFR1 pressure-flow control adjusts delivery according to circuit demand, and the built-in differential pressure setting of 14 bar defines the margin used by the compensator valve. The pump is rated for a nominal pressure of 280 bar with a peak capability of 350 bar, allowing short pressure spikes without damage. Clockwise shaft rotation matches right-handed prime movers, while a maximum case drain pressure of 2 bar protects housing seals. The mounting flange follows SAE J744 127-2 (C), simplifying attachment to standard engines or gearboxes.
Minimum absolute inlet pressure is 0.8 bar, a value that limits cavitation when the pump draws fluid from the reservoir. Fluid entry is through a 2-inch SAE J518 port, and delivery exits a 1-inch SAE J518 pressure port to downstream actuators. Side-mounted service ports identified as 92 N00 assist compact installation in narrow frames. No through drive is provided, so the unit cannot mechanically pass power to an additional pump. FKM seal material resists common hydraulic oils at the stated pressures. A filling capacity of 0.42 gal indicates the volume required for initial oil charge and internal lubrication. These interface, sealing, and fluid data support correct sizing and maintenance in automated hydraulic circuits.
Technical Specifications
Case Drain Pressure Max
2 bar
Control Type
DFR1 (Pressure-Flow)
Differential Pressure Setting
14 bar
Direction Of Rotation
Clockwise (R)
Displacement
71 cm3/rev
Filling Capacity
0.42 gal
Inlet Abs Pressure Min
0.8 bar
Inlet Port Size
SAE J518 2 in
Mounting Flange
SAE J744 127-2 (C)
Nominal Pressure
280 bar
Peak Pressure
350 bar
Pressure Port Size
SAE J518 1 in
Seal Material
FKM (V)
Service Ports
Side (92 N00)
Through Drive
None (N00)
1620 Old Apex Road
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