1-888-551-3082 | 1-919-443-0207 | sales@hydraulicpartsusa.com
You will get an email confirming we have received your inquiry.
A team member will review your request and be in touch concerning any questions or specifications.
You will receive a comprehensive quote tailored to your specific needs.
The A10VO60DR/52L-PSD61N00 SO277 variable displacement pump belongs to the A10VSO Variable Pumps series and is manufactured by Bosch Rexroth for open-circuit hydraulic automation. Pressure is regulated by DR pressure control, allowing the unit to adjust displacement as system pressure rises. Control hysteresis is limited to 3 bar, so pressure adjustments stay within a narrow band. The pump handles a nominal pressure of 280 bar for continuous duty, while it withstands peak pressure surges up to 350 bar. Internal flow moves from port S to port B, matching circuit designs that require this directional layout. The drive shaft is configured for counter-clockwise rotation, simplifying coupling with left-hand prime movers. All service and working ports are arranged at the rear with no through drive option designated 61 N00, which suits compact manifold mounting. Working ports follow the SAE J518 standard, ensuring compatibility with common flange connections.
Maximum inlet pressure is 30 bar absolute. The unit continues to draw fluid at a minimum inlet pressure of 0.8 bar absolute, supporting suction lines with modest vacuum. Case drain pressure over inlet must not exceed 0.5 bar, and total case drain pressure is restricted to 2 bar absolute to prevent internal leakage paths from overloading the housing. Pilot oil consumption for the pressure control circuit stays below 3 L/min, so auxiliary flow demand remains low. The pilot port X uses a 7/16-20 UNF-2B thread, which matches common diagnostic fittings. A P-type shaft seal formed from NBR and FKM safeguards rotating elements against fluid loss and contaminant ingress.
Case Drain Over Inlet
0.5 bar max
Control Hysteresis
3 bar max
Control Type
DR (Pressure Control)
Direction Of Flow
S To B
Direction Of Rotation
Counter-Clockwise (L)
Max Case Drain Pressure (abs)
2 bar
Max Inlet Pressure (abs)
30 bar
Min Inlet Pressure (abs)
0.8 bar
Nominal Pressure
280 bar
Operating Mode
Open Circuit
Peak Pressure
350 bar
Pilot Oil Consumption (dr)
3 L/min max
Pilot Port Thread (x)
7/16-20 UNF-2B
Ports Orientation
Rear, No Through Drive (61 N00)
Seal Type
P (NBR, FKM Shaft Seal)
Working Port Standard
SAE J518
Worldwide Shipping with FedEx and UPS.
We accept all major credit cards
1 year Hydraulic Parts USA warranty on ALL products
We are a Better Business Bureau A+ business