Bosch Rexroth | AA10VSO140DRG31R-PKD62K38
AA10VSO140DRG/31R-PKD62K38
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The AA10VSO140DRG/31R-PKD62K38 variable pump from Bosch Rexroth belongs to the A10VSO Variable Pumps series. It supplies adjustable hydraulic flow in automation circuits that need remote pressure regulation. The DRG control varies displacement against load; both its standard setting and the nominal operating limit are 280 bar, and it uses a 20 bar differential between cut-in and cut-out. Geometric displacement is 140 cm³ per revolution, providing a fixed volume reference for pump sizing. Peak system events can be tolerated up to 350 bar without damage. The shaft turns clockwise as defined by the “R” rotation code. Housing weight is 60 kg without fluid, allowing installation on medium-frame power units.
Internal and external loads define the mechanical and suction limits. The shaft can accept 4800 N axial force and 2800 N radial force, so belt or gear drives can be attached within bearing capacity. Case leakage is held in a 3.0 L reservoir inside the housing, and internal case pressure must stay below 2 bar absolute. The inlet line must remain between 0.8 bar and 30 bar absolute to prevent cavitation and seal extrusion; these limits guide filter sizing and tank elevation. Pilot operation draws no more than 4.5 L/min of oil, routed through port X that carries an M14 × 1.5 thread in accordance with DIN 3852-1.
Technical Specifications
Case Volume
3.0 L (0.79 gal)
Control Type
DRG (Remote Pressure Control)
Drg Differential Pressure (std)
20 bar (290 psi)
Drg Standard Pressure
280 bar (4100 psi)
Geometric Displacement
140 cm³/rev (8.54 in³/rev)
Max Axial Shaft Force
4800 N (1080 lbf)
Max Case Pressure (abs)
2 bar (29 psi)
Max Inlet Pressure (abs)
30 bar (435 psi)
Max Radial Shaft Force
2800 N (630 lbf)
Min Inlet Pressure (abs)
0.8 bar (12 psi)
Nominal Pressure
280 bar (4000 psi)
Peak Pressure
350 bar (5100 psi)
Pilot Oil Consumption
4.5 L/min (1.2 gpm) max
Pilot Port X Thread
M14×1.5 (DIN 3852-1)
Rotation
Clockwise (R)
Weight (without Fluid)
60 kg (132 lb)
1620 Old Apex Road
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