Bosch Rexroth | AA10VO60DFR52R-VSD61N00
AA10VO60DFR/52R-VSD61N00
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The AA10VO60DFR/52R-VSD61N00 variable displacement pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies controlled hydraulic flow for automated machinery. It employs an axial piston, swashplate design that adjusts displacement in response to load demand. The unit operates in an open circuit so return oil goes directly to the reservoir. A DFR pressure-flow regulator modifies the swashplate angle to maintain both pressure and flow, with the internal flow controller holding a 200 psi (14 bar) differential across the metering edges. Continuous duty is supported at 4,000 psi (280 bar) nominal pressure, while short excursions can reach 5,100 psi (350 bar) peak. Clockwise rotation matches common right-hand prime movers, and a SAE J744 mounting flange aligns the housing with standard engine or motor pads. Service ports are positioned at the rear with no through drive, simplifying end-of-line installation in compact power units.
Fluid enters the pump through port S and exits through port B, establishing the specified S-to-B flow direction for circuit layout clarity. Two case-drain ports are provided so installers can choose the most favorable routing, and housing pressure must stay below 29 psi (2 bar) absolute to protect the shaft seal. Reliable inlet feeding requires absolute pressure between 12 psi (0.8 bar) and 435 psi (30 bar); remaining in this window prevents cavitation and over-loading. Control pilot signals connect at port X, which is threaded 7/16-20 UNF-2B to accept standard test fittings. Working lines attach via SAE J518 service ports that use four-bolt split flanges for high-pressure sealing. These connection and pressure limits enable the pump to support cylinders, hydraulic motors, and auxiliary circuits in presses, machine tools, and material-handling equipment without compromising reliability.
Technical Specifications
Case Drain Ports
2
Circuit Type
Open Circuit
Control Type
DFR (Pressure-Flow Control)
Direction Of Flow
S To B
Flow Controller Δp
200 psi (14 bar)
Inlet Abs Pressure Max
435 psi (30 bar)
Inlet Abs Pressure Min
12 psi (0.8 bar)
Max Case Drain Pressure
29 psi (2 bar) abs
Mounting Flange
SAE J744
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Pilot Port X Thread
7/16-20 UNF-2B
Pump Design
Axial Piston, Swashplate
Rotation Direction
Clockwise
Service Port Orientation
Rear, No Through Drive
Service Ports
SAE J518
1620 Old Apex Road
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