Bosch Rexroth | AA10VO60DFR152R-VSC61N00
AA10VO60DFR1/52R-VSC61N00
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The AA10VO60DFR1/52R-VSC61N00 variable displacement axial piston pump is produced by Bosch Rexroth within the A10VSO Variable Pumps series. Designed to modulate flow in hydraulic automation, it delivers 60 cm³ per revolution so circuit designers can match actuator speed to machine demands. The pump turns clockwise, a requirement that determines shaft coupling orientation and the direction from suction to discharge. Flow moves from port S to port B, which organizes external pipework for predictable service procedures. Continuous duty is governed by a nominal pressure of 4000 psi, while a peak tolerance of 5100 psi accommodates transient load spikes without affecting service life. An inlet absolute pressure window of 12 psi to 435 psi lets the unit operate with either flooded or boosted intakes, preventing cavitation under varying tank levels. The DFR1 compensator maintains a constant 200 psi differential, holding valve performance steady as flow changes.
This pump accepts fluid from −40 °F up to 239 °F, enabling reliable cold starts and sustained high-temperature duty in mobile or industrial plants. The internal pressure cutoff is calibrated to 4100 psi so the control spool limits circuit pressure before it reaches the higher peak rating stated earlier. Case drainage is limited to 29 psi, protecting housing seals and preventing aeration in the reservoir return line. A SAE J744 mounting flange keeps the shaft centerline consistent with common drive motors, simplifying initial alignment and later replacements. The service and suction flanges conform to the SAE J518 pattern, letting technicians use standard split-flange hardware without adapters. The pilot port is threaded 7/16-20 UNF-2B, providing a straightforward interface for remote pressure signal or load-sense hoses. FKM seals are installed at all dynamic and static joints, resisting heat and aggressive hydraulic fluids to maintain endurance between scheduled maintenance intervals.
Technical Specifications
Case Drain Absolute Max
29 psi (2 bar)
Dfr1 Differential Pressure
200 psi (14 bar)
Direction Of Flow
S To B
Direction Of Rotation
Clockwise (R)
Fluid Temperature Max
239 °F (115 °C)
Fluid Temperature Min
-40 °F (-40 °C)
Geometric Displacement
60 cm3/rev
Max Inlet Absolute Pressure
435 psi (30 bar)
Min Inlet Absolute Pressure
12 psi (0.8 bar)
Mounting Flange
SAE J744
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Pilot Port Thread
7/16-20 UNF-2B
Port Standard
SAE J518
Pressure Cutoff Standard
4100 psi (280 bar)
Sealing Material
FKM (Code V)
1620 Old Apex Road
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