Bosch Rexroth | AA10VSO140DR31R-PKD62K02
AA10VSO140DR/31R-PKD62K02
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The AA10VSO140DR/31R-PKD62K02 variable pump is produced by Bosch Rexroth for the A10VSO Variable Pumps series and supplies controlled hydraulic flow to mobile or industrial actuators. It displaces 8.54 in³ per revolution, establishing the flow rate each shaft turn. A built-in pressure controller maintains system pressure automatically, eliminating separate relief valves. Clockwise rotation matches standard engine drive direction, and a parallel keyed shaft passes torque directly to the coupling. The drive train can apply up to 875 lb-ft of input torque without overstressing the shaft. A four-bolt SAE J744 152-4 mounting flange positions the housing on conventional pump pads, and continuous duty at 4000 psi supports heavy-duty steering, transmission, or work circuits.
For short overloads the pump withstands peaks to 5100 psi, preventing flow loss during pressure spikes. The suction port follows a 2 1/2-inch SAE J518 pattern so low inlet restriction is maintained at high flow. An internal case volume of 0.79 gal stores leakage oil to cool and lubricate rotating groups before return to tank. Case fluid is routed through a 1 1/16-12 UN-2B drain port that accepts standard straight-thread adapters, while a 9/16-18 UNF-2B pilot port connects the pressure control line. NBR seals are fitted throughout the unit to contain petroleum-based fluids under the stated pressures and temperatures, completing a design that installs easily in demanding hydraulic automation systems.
Technical Specifications
Case Volume
0.79 gal (3.0 L)
Control Type
Pressure Controller (DR)
Direction Of Rotation
Clockwise (R)
Displacement
8.54 in3/rev (140 cm3/rev)
Drain Port Thread (l/l1)
1 1/16-12 UN-2B
Max Input Torque (k Shaft)
875 lb-ft (1186 Nm)
Mounting Flange
SAE J744 152-4 (4-bolt)
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Pilot Port Thread (x)
9/16-18 UNF-2B
Seal Material
NBR (P)
Shaft End Type
Parallel Keyed (K)
Suction Port S Size
SAE J518 2 1/2 in
1620 Old Apex Road
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