Bosch Rexroth | AA10VO71DRG31R-PSC92K07-R902406987
AA10VO71DRG/31R-PSC92K07 R902406987
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The AA10VO71DRG/31R-PSC92K07 R902406987 variable pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies hydraulic flow for automated machinery. It has a displacement of 71 cm³ per revolution and is built for clockwise shaft rotation to match standard prime movers. At its rated speed of 2200 rpm and full displacement, the unit delivers up to 156 l/min to the circuit. Continuous operation is supported at a nominal pressure of 280 bar, while short peaks may reach 350 bar. Shaft loading at 280 bar corresponds to 316 Nm of torque. A DRG control keeps a differential pressure of 20 bar across the pump, and the pressure rise characteristic is limited to an 8 bar increase for stable response.
The pump tolerates a maximum speed of 2600 rpm when the displacement is reduced, extending the working envelope for load-sensing systems. Case drainage is routed through a 7/8-14 UNF-2B thread, and pilot control oil uses a 7/16-20 UNF-2B port marked X. Discharge piping connects to a 1 in SAE J518 pressure port, while suction flow enters through a 2 in SAE J518 inlet. The through-drive interface uses an SAE J744 127-2 C flange coupled to a 1 1/4 in 14-tooth 12/24 DP spline so an additional pump can be mounted in series.
Technical Specifications
Direction Of Rotation
Clockwise
Displacement
71 cm3/rev
Drain Port Thread
7/8-14 UNF-2B
Drg Differential Pressure (std)
20 bar
Drg Pressure Increase Δp
8 bar
Max Flow At Rated Speed
156 l/min
Max Perm Speed (vg < Vg Max)
2600 rpm
Maximum Pressure
350 bar
Nominal Pressure
280 bar
Pilot Port X Thread
7/16-20 UNF-2B
Pressure Port Size
1 in SAE J518
Rated Speed (at Vg Max)
2200 rpm
Suction Port Size
2 in SAE J518
Through-drive Flange
SAE J744 127-2 (C)
Through-drive Spline
1 1/4 in 14T 12/24 DP
Torque At 280 Bar
316 Nm
1620 Old Apex Road
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