Bosch Rexroth | AA10VM45HZ52W1-VRC60N000
AA10VM45HZ/52W1-VRC60N000
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The AA10VM45HZ/52W1-VRC60N000 variable motor belongs to the A10VM Variable Motors series and is produced by Bosch Rexroth for hydraulic automation systems. With a maximum displacement of 45 cm³, the unit varies output to match load demands in closed or open loop circuits. At nominal speed and full displacement it delivers a flow of 180 l/min, supplying downstream actuators with steady volume. The rotor may turn at up to 4000 rpm when operating at maximum displacement, while a higher limit of 4600 rpm applies when displacement is reduced, allowing speed-focused cycles. When the pressure reaches 280 bar the motor can generate 200 Nm of torque, supporting medium power drives. Continuous duty is set around a nominal pressure of 280 bar, yet the housing tolerates peaks up to 350 bar for brief overload events. Throughout rapid load changes the pressure rate may rise as high as 16 000 bar/s without compromising integrity of the rotating group.
The mechanical bearings accept an axial load of ±1500 N and a radial load of 1500 N at half the shaft extension, so side-mount pulleys or gears can be applied without extra support. System back pressure must stay above 10 bar absolute on the high-pressure side and 2 bar absolute on the low-pressure side to maintain lubrication and avoid cavitation. The pilot control channel functions between 30 bar and 280 bar, enabling stable swashplate positioning across common supply ranges. Hydraulic connections follow standard interfaces; the working port on port plate 60 uses a 3/4-inch pad to ISO 6162-2, and the drain port is tapped 7/8-14 UNF-2B for case leakage return. These limits and interfaces allow the motor to couple with pumps, manifolds, or proportional valves in mobile machinery while keeping thrust and pressure within the stated design envelope.
Technical Specifications
Displacement (vg Max)
45 cm3
Drain Port Thread
7/8-14 UNF-2B
Flow At Nnom And Vg Max
180 l/min
Max Axial Force
±1500 N
Max Pilot Pressure (hz)
280 bar
Max Radial Force At X/2
1500 N
Max Speed At Vg Max
4000 rpm
Max Speed At Vg Min
4600 rpm
Max Torque At 280 Bar
200 Nm
Maximum Pressure
350 bar
Min Pilot Pressure (hz)
30 bar
Min Pressure (high-pressure Side)
10 bar (abs)
Min Pressure (low-pressure Side)
2 bar (abs)
Nominal Pressure
280 bar
Rate Of Pressure Change Max
16000 bar/s
Working Port Size (port Plate 60)
3/4 in (ISO 6162-2)
1620 Old Apex Road
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