Bosch Rexroth | AA10VSO71DFR31R-VKC92K68
AA10VSO71DFR/31R-VKC92K68
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The AA10VSO71DFR/31R-VKC92K68 axial piston pump is part of the A10VSO Variable Pumps series produced by Bosch Rexroth. It is intended to supply pressurized hydraulic fluid in automated systems where adjustable flow is required. The pump turns clockwise, a direction that determines compatible drive arrangements. A geometric displacement of 71 cm³ per revolution sets the fundamental volume transferred each cycle. During standard duty at 1800 rpm the unit delivers 128 l/min, while operation at its nominal speed of 2200 rpm raises flow to 156 l/min. The design tolerates sustained service at a nominal pressure of 280 bar and can accept peaks up to 350 bar. Speed capability extends to 2600 rpm, giving extra range for transient demand without overspeed risk.
At the nominal speed and 280 bar, the pump transmits 73 kW to the hydraulic circuit, indicating the power that must be available at the prime mover. Output torque reaches 316 Nm at 280 bar, and measures 113 Nm when the pressure is limited to 100 bar. Drive shaft rigidity is defined by a rotary stiffness of 53019 lb-ft per radian to restrain torsional deflection under load. The sealing elements are made from FKM to withstand fluid temperature and pressure within the rated limits. A configuration that includes a through drive weighs 38 kg, whereas a version without the through drive assembly weighs 35.2 kg, allowing selection based on mounting and auxiliary pump requirements.
Technical Specifications
Direction Of Rotation
Clockwise
Geometric Displacement
71 cm3/rev
Max Flow At 1800 Rpm
128 l/min
Max Flow At Nnom
156 l/min
Max Permissible Speed
2600 rpm
Max Torque (280 Bar)
316 Nm
Maximum Pressure
350 bar
Nominal Pressure
280 bar
Nominal Speed
2200 rpm
Power At Nnom (280 Bar)
73 kW
Rotary Stiffness Of Drive Shaft
53019 lb-ft/rad
Sealing Material
FKM
Torque (100 Bar)
113 Nm
Weight With Through Drive
38 kg
Weight Without Through Drive
35.2 kg
1620 Old Apex Road
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