Bosch Rexroth | AA10VSO71DFR131R-PKC92N00
AA10VSO71DFR1/31R-PKC92N00
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The AA10VSO71DFR1/31R-PKC92N00 variable pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies adjustable hydraulic flow for automated circuits. Its geometric displacement is 71 cm³/rev, so at the nominal speed of 2200 rpm it delivers 156 L/min to attached actuators. The unit operates at a nominal pressure of 280 bar and absorbs 73 kW of mechanical power at that point. A clockwise rotation matches standard prime movers, and the parallel-keyed drive shaft simplifies coupling to electric motors or gearboxes. The pump weighs 35.2 kg, a value considered when selecting mounting brackets and handling equipment.
The internal case volume is 1.6 L, and the case drain line must keep pressure below the 2 bar maximum to protect seals. The DFR1 regulator leaves production with a 14 bar differential setting so displacement is reduced once system pressure exceeds that margin. Reliable suction is maintained by requiring a minimum inlet absolute pressure of 0.8 bar, while continuous speed is limited to 2600 rpm. Transient events can reach a peak pressure of 350 bar, and the shaft can accept up to 433 Nm of input torque without damage. At the nominal 280 bar load the hydraulic demand corresponds to 316 Nm of torque, which guides motor sizing and coupling selection.
Technical Specifications
Case Volume
1.6 L
Dfr1 Δp Standard Setting
14 bar
Drive Shaft Type
Parallel Keyed
Flow @ Nominal Speed
156 L/min
Geometric Displacement
71 cm³/rev
Max Case Drain Abs Pressure
2 bar
Max Input Torque (shaft K)
433 Nm
Max Speed
2600 rpm
Min Inlet Abs Pressure
0.8 bar
Nominal Pressure
280 bar
Nominal Speed
2200 rpm
Peak Pressure
350 bar
Power @ Nominal Speed (280 Bar)
73 kW
Rotation
Clockwise
Torque @ 280 Bar
316 Nm
Weight (without Through Drive)
35.2 kg
1620 Old Apex Road
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