Bosch Rexroth | AA10VSO140DR31R-PKD62K01
AA10VSO140DR/31R-PKD62K01
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The AA10VSO140DR/31R-PKD62K01 variable pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth. It is designed to provide adjustable hydraulic flow for circuit pressure regulation in mobile and industrial automation. The DR pressure controller modulates displacement in response to line pressure, enabling efficient power usage. A geometric displacement of 140 cm³ per revolution defines the volume of oil delivered per shaft turn, and a flow capability of 252 L/min at 1800 rpm supplies medium- to high-demand actuators. The pump is rated for a nominal pressure of 280 bar, with a maximum working limit of 350 bar to handle transient spikes without damage. Clockwise shaft rotation aligns with common engine PTO arrangements, simplifying drivetrain integration. A suction port sized to SAE J518 2 1/2 in minimizes inlet losses, while the pressure port sized to SAE J518 1 1/4 in provides a standard outlet interface for high-pressure lines.
Side-mounted service connections follow port configuration code 62, positioning all working ports on one face for compact manifold layouts. A 4-hole SAE J744 mounting flange secures the housing to standard bell-housings and maintains concentric alignment under load. The K01 through-drive option with an 82-2(A) 5/8 in 9-tooth 16/32DP spline passes up to 1186 Nm to auxiliary pumps so secondary circuits can run from the same prime mover. Shaft torque transmitted to the internal swashplate reaches 623 Nm at 280 bar, and continuous speed capability is maintained up to 1800 rpm to match common diesel engine speeds. An NBR shaft seal backed by FKM eliminates external leakage over a broad temperature range, while a drain port with a 1 1/16-12 UN-2B thread allows case oil to return to tank and maintain bearing lubrication.
Technical Specifications
Control Type
DR (Pressure Controller)
Direction Of Rotation
Clockwise (R)
Displacement
140 cm³/rev
Drain Port Thread
1 1/16-12 UN-2B
Flow At 1800 Rpm
252 L/min
Max Speed (vgmax)
1800 rpm
Max Through-drive Torque (shaft K)
1186 Nm
Max Torque (280 Bar)
623 Nm
Maximum Pressure
350 bar
Mounting Flange
4-hole (SAE J744)
Nominal Pressure
280 bar
Port Configuration
62 (ports on side)
Pressure Port Size
SAE J518 1 1/4 in
Seal Material
NBR (shaft seal FKM)
Suction Port Size
SAE J518 2 1/2 in
Through Drive
K01 (82-2(A) 5/8 in 9T 16/32DP)
1620 Old Apex Road
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