Bosch Rexroth | AA10VO85DFR152L-VUC62N00
AA10VO85DFR1/52L-VUC62N00
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The AA10VO85DFR1/52L-VUC62N00 pump is manufactured by Bosch Rexroth in the A10VSO Variable Pumps series and supplies adjustable hydraulic flow for automated machinery. It operates at a nominal pressure of 4000 psi (280 bar) so circuits can sustain continuous loads. A peak pressure limit of 5100 psi (350 bar) accepts short-duration spikes without structural damage. The DFR1 control maintains a 200 psi (14 bar) differential between outlet and load sense line to keep flow stable. An absolute inlet pressure ceiling of 435 psi (30 bar) prevents cavitation when the suction line is pressurized. The unit tolerates fluid temperatures up to 239 °F (115 °C) for high-heat environments. Its shaft turns counterclockwise, and oil flows from port S to port B, establishing standard connection orientation. A flange built to SAE J744 dimensions eases direct mounting to common prime movers.
Side ports defined by Version 62 place both service connections on the pump flank to simplify hose routing. Two case drain ports are available, and the head above the inlet is limited to 7 psi (0.5 bar) so bearing loading stays low. Overall case drain pressure must remain under 29 psi (2 bar) to protect shaft seals. The X pilot port is threaded R1/4 per DIN 3852-1, providing a control inlet for remote pressure adjustment. Pressure outlets use SAE J518 flanges, allowing the pump to bolt to standard manifolds. The required fluid cleanliness of ISO 4406 20/18/15 minimizes wear on the piston set and swashplate. Because the design includes no through drive, it cannot mechanically feed an auxiliary pump.
Technical Specifications
Case Drain Above Inlet
7 psi (0.5 bar)
Case Drain Abs Max
29 psi (2 bar)
Case Drain Ports
2
Cleanliness Class
ISO 4406 20/18/15
Differential Pressure (dfr1)
200 psi (14 bar)
Direction Of Flow
S To B
Direction Of Rotation
Counterclockwise (L)
Inlet Pressure Abs Max
435 psi (30 bar)
Max Fluid Temperature
239 °F (115 °C)
Mounting Flange Standard
SAE J744
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Pilot Port X Thread
R1/4 (DIN 3852-1)
Port Orientation
Side Ports (Version 62)
Pressure Port Flanges
SAE J518
Through Drive
None (N00)
1620 Old Apex Road
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