AA10VO45DR/52R-VSC62N00

The AA10VO45DR/52R-VSC62N00 pump belongs to the A10VSO Variable Pumps series and is manufactured by Bosch Rexroth for closed-circuit hydraulic drives. It mounts on a standard SAE J744 101-2 (B) flange, giving installers a familiar bolt pattern. Fluid enters through a suction connection sized at SAE J518 1 1/2 in to supply the rotating piston group, while pressurized fluid exits through a discharge port sized at SAE J518 1 in for straightforward hose selection. Continuous service is supported up to 4000 psi (280 bar), and the design withstands transient peaks to 5100 psi (350 bar) so shock loads do not damage circuit components.

A case drain port threaded ISO 11926 7/8-14 UNF-2B returns internal leakage to tank and prevents housing overpressure. The DR pressure control limits hysteresis to 45 psi (3 bar), reducing outlet pressure swings when the swashplate shifts. During rapid unloading, the size 45 unit destrokes in 20 ms to lower flow quickly and protect downstream actuators. The control loop draws no more than 0.8 gpm (3 L/min) of pilot oil, keeping thermal losses low and conserving auxiliary pump capacity. These features combine to deliver stable, responsive performance in automated hydraulic systems.