Bosch Rexroth | AA10VO71DRG31R-PSC92N00-SO97
AA10VO71DRG/31R-PSC92N00-SO97
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The AA10VO71DRG/31R-PSC92N00-SO97 pump is manufactured by Bosch Rexroth in the A10VSO Variable Pumps series and supplies pressurized oil to hydraulic automation circuits. A clockwise rotation direction aligns the shaft with common prime movers, while a displacement of 71 cm³ per revolution defines the volume delivered on each turn. At the rated speed of 2,200 rpm the unit produces 156 L/min, giving designers a clear baseline for actuator sizing. The pump can be accelerated up to 2,600 rpm when full displacement is not required, extending its flow range for transient demands. Power draw reaches 73 kW at 280 bar, so the driving motor and power electronics can be matched accordingly. The shaft must withstand 316 Nm of torque at the same pressure, a value used when selecting couplings and mounting hardware.
A continuous operating limit of 280 bar sets the nominal working pressure, and a peak rating of 350 bar covers short-term load spikes in mobile or industrial machines. Suction lines connect via a 2 in SAE J518 inlet port, and the pressurized outlet is a 1 in SAE J518 port for straightforward hose selection. Internal leakage oil is routed through a 7/8-14 UNF-2B case drain, while control signals enter the housing through a 7/16-20 UNF-2B pilot port. The case holds 1.6 L of oil to aid cooling and lubrication, and the design omits a through drive so the pump cannot power additional downstream units, simplifying installation. A weight of 35.2 kg informs bracket design and lifting procedures during service.
Technical Specifications
Case Drain Port
7/8-14 UNF-2B
Case Volume
1.6 L
Direction Of Rotation
Clockwise
Displacement
71 cm3/rev
Flow At Nnom (vg Max)
156 l/min
Inlet Port Size
SAE J518 2 in
Max Speed (vg < Vg Max)
2600 rpm
Maximum Pressure
350 bar
Nominal Pressure
280 bar
Pilot Port Thread
7/16-20 UNF-2B
Power At Nnom (280 Bar)
73 kW
Pressure Port Size
SAE J518 1 in
Rated Speed (vg Max)
2200 rpm
Through Drive
None
Torque At 280 Bar (vg Max)
316 Nm
Weight Without Through Drive
35.2 kg
1620 Old Apex Road
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