AA2FM180/61W-VBD520

The AA2FM180/61W-VBD520 hydraulic motor belongs to Bosch Rexroth’s A2FM Fixed Motors series and serves as a compact power unit for hydraulic automation. It features a displacement of 180 cm³ per revolution, delivering a defined fluid volume with every shaft turn to maintain predictable actuator motion. At the nominal speed of 3600 rpm it handles an inlet flow of 648 l/min so circuit designers can size pumps and lines accordingly. The nominal pressure capacity of 400 bar supports continuous-duty loads common in mobile drives, while the produced torque reaches 1146 Nm at that pressure to move heavy machine elements. A rotary group moment of inertia of 0.022 kg·m² minimizes energy needed for acceleration, and the permitted angular acceleration of 3500 rad/s² helps the motor follow rapid load changes without mechanical stress.

The unit withstands a maximum pressure of 450 bar, offering safety margin for transient peaks during start-up or braking. A case volume of 1.1 l provides internal space for leakage oil that lubricates bearings before it is drained. The dedicated drain port is sized M22 × 1.5 to route this oil back to the tank with low back pressure, while the working port follows SAE J518 and measures 1 1/4 in, simplifying connection to standard high-pressure hoses. A shaft diameter of 50 mm ensures adequate torsional strength, and the drive interface uses an AS14 × 9 × 70 key per DIN 6885 to transmit torque reliably to couplings. The center bore is tapped M16 × 2, giving a secure point for puller bolts during maintenance or installation. These mechanical details support consistent performance when the motor is integrated into industrial or mobile hydraulic systems.