Bosch Rexroth | AA10VO60DFR52R-VSC62K68
AA10VO60DFR/52R-VSC62K68
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The AA10VO60DFR/52R-VSC62K68 axial piston unit is part of the A10VSO Variable Pumps series manufactured by Bosch Rexroth to supply controlled flow and pressure in hydraulic automation systems. It uses pressure/flow control (DFR) to adjust displacement in response to load signals, improving efficiency of fixed-speed prime movers. Clockwise rotation matches standard engine drives while the defined flow path from port S to port B sets inlet and outlet orientation for circuit layout. A nominal pressure limit of 280 bar supports continuous duty, and a maximum pressure rating of 350 bar accommodates transient peaks. The internal compensator requires a differential pressure of 200 psi (14 bar) to shift the swashplate, ensuring stable control. Suction conditions are protected by a minimum absolute inlet pressure of 0.8 bar (12 psi) which guards against cavitation during low-head supply situations.
Port and material features support integration into industrial manifolds. The inlet circuit tolerates up to 30 bar (435 psi) absolute, allowing boosted charge pumps where high speed is required. A case drain absolute pressure limit of 2 bar (29 psi) prevents housing seal overload and ensures reliable bearing lubrication. The main pressure port follows the SAE J518 pattern, while the drain port uses an ISO 11926 thread; the pilot port is tapped 7/16-20 UNF-2B to accept common load-sensing lines. An SAE J744 101-2 (B) through-drive flange permits tandem mounting of auxiliary pumps without extra adapters. Fluid cleanliness must reach ISO 4406 class 20/18/15 to limit wear in the piston group, and permissible fluid temperature extends to 115 °C (239 °F) for high-duty cycles. FKM seals resist these elevated temperatures and standard hydraulic oils, completing the compatibility profile.
Technical Specifications
Case Drain Abs Pressure Max
2 bar (29 psi)
Control Type
Pressure/Flow Control (DFR)
Differential Pressure (standard)
200 psi (14 bar)
Direction Of Flow
S To B
Direction Of Rotation
Clockwise
Drain Port Thread
ISO 11926
Fluid Cleanliness (min)
ISO 4406 20/18/15
Fluid Temperature Max
115 °C (239 °F)
Inlet Abs Pressure Max
30 bar (435 psi)
Inlet Abs Pressure Min
0.8 bar (12 psi)
Maximum Pressure
350 bar
Nominal Pressure
280 bar
Pilot Port Thread
7/16-20 UNF-2B
Pressure Port Type
SAE J518
Seal Material
FKM
Through-drive Flange
SAE J744 101-2 (B)
1620 Old Apex Road
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