Bosch Rexroth | A10VO71DR31R-PSC92K02
A10VO71DR/31R-PSC92K02
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The A10VO71DR/31R-PSC92K02 axial piston pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies adjustable flow for hydraulic automation circuits. Its DR pressure control keeps outlet pressure stable by altering displacement, which is 71 cm³ per revolution. The pump delivers 33.8 gpm at 1800 rpm and can reach 41.2 gpm when maximum flow is required. Operation is intended at a rated speed of 2200 rpm, while nominal system pressure is 280 bar with allowances up to 350 bar for short periods. Clockwise rotation matches common engine drive arrangements, aligning the unit with standard power-takeoff layouts.
The rotating assembly tolerates speeds up to 2600 rpm, and a power capacity of 98 HP at 280 bar supports compact prime movers. Output torque reaches 230 lb-ft at nominal pressure, and a moment of inertia of 0.197 lb-ft² permits rapid acceleration in duty cycles that start and stop frequently. The inlet connection is a 2-inch SAE J518 port, while the pressure outlet is a 1-inch SAE J518 interface to simplify hose selection. Case drain pressure is limited to 29 psi to protect shaft seals, and mounting is accomplished with an SAE J744 two-hole C-flange for direct installation on existing equipment.
Technical Specifications
Case Drain Pressure Max (abs)
29 psi (2 bar)
Control Type
DR Pressure Control
Displacement
71 cm3/rev (4.33 in3/rev)
Flow @ 1800 Rpm
33.8 gpm (128 l/min)
Inlet Port Size
SAE J518 2 in
Max Flow
41.2 gpm (156 l/min)
Max Permissible Speed
2600 rpm
Max Power (280 Bar)
98 HP (73 kW)
Maximum Pressure
350 bar (5100 psi)
Moment Of Inertia
0.197 lb-ft² (0.0083 kg·m²)
Mounting Flange
SAE J744 2-hole (C)
Nominal Pressure
280 bar (4000 psi)
Pressure Port Size
SAE J518 1 in
Rated Speed (vg Max)
2200 rpm
Rotation Direction
Clockwise
Torque (280 Bar)
230 lb-ft (316 Nm)
1620 Old Apex Road
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