Bosch Rexroth | AA10VSO140DR31R-VKD62N00
AA10VSO140DR/31R-VKD62N00
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The AA10VSO140DR/31R-VKD62N00 variable pump belongs to the A10VSO Variable Pumps series manufactured by Bosch Rexroth for closed-loop hydraulic automation. It uses a pressure controller, so outlet flow is adjusted automatically to maintain the commanded pressure setpoint. Geometric displacement is 140 cm³ per revolution, which defines the flow delivered per shaft turn and guides motor sizing. The shaft is designed for clockwise rotation, allowing direct coupling to prime movers with the same orientation. A maximum setting pressure of 4 100 psi limits the adjustment range of the control while a working port pressure limit of 5 100 psi protects the main circuit components. Side ports specified as 62 N00 keep both suction and pressure connections on one face for compact manifold layout. There is no through drive, so the unit cannot power an additional pump in tandem. FKM seals resist mineral oil and high temperature, and the fluid requirement is HLP DIN 51524-2 to ensure proper lubrication and wear control.
The drain port is rated for 30 psi, so case leakage must be routed to a low-pressure return to avoid seal damage. Suction port pressure may reach 145 psi, which allows elevated tank placement without risk of cavitation. A pilot port pressure limit of 5 100 psi matches the working port rating, giving flexibility for remote pressure commands. Maximum pilot fluid consumption is 0.8 gpm, a figure needed when sizing the control line and return gallery. Hysteresis is held below 45 psi, indicating the controller repeats pressure settings with minimal deviation during load changes. Stroking time to 725 psi is 130 ms, so the pump responds quickly when higher flow is demanded. These characteristics define steady-state limits and dynamic behavior, enabling engineers to match the pump to actuators and system protection valves without exceeding design margins.
Technical Specifications
Control Type
Pressure Controller (DR)
Direction Of Rotation
Clockwise
Drain Port Pressure Max
30 psi (2 bar)
Geometric Displacement
140 cm3/rev (8.54 in3/rev)
Hydraulic Fluid
HLP DIN 51524-2
Hysteresis Max
45 psi (3 bar)
Max Setting Pressure
4100 psi (280 bar)
Pilot Fluid Consumption Max
0.8 gpm
Pilot Port Pressure Max
5100 psi (350 bar)
Port Configuration
Side Ports (62 N00)
Seal Material
FKM (V)
Stroking Time To 725 Psi
130 ms
Suction Port Pressure Max
145 psi (10 bar)
Through Drive
None (N00)
Working Port Pressure Max
5100 psi (350 bar)
1620 Old Apex Road
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