Bosch Rexroth | AA2FM1661W-VSC530
AA2FM16/61W-VSC530
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The AA2FM16/61W-VSC530 motor belongs to the A2FM Fixed Motors series and is manufactured by Bosch Rexroth for hydraulic automation where pressurized fluid drives mechanical shafts. Its displacement is 16 cm³ per revolution, establishing the volume of oil that produces rotation each cycle. At a nominal pressure of 400 bar the motor generates 102 Nm of torque, allowing compact transmission of force in mobile or industrial equipment. A nominal speed capability of 8000 rpm supports high power density when space is limited. The inlet flow reaches 128 l/min at nominal speed, so the supply circuit must provide adequate volume to prevent starvation. Bidirectional rotation enables the same unit to drive or be driven in either direction without mechanical changes. Rotary stiffness of 1.59 kNm/rad keeps torsional twist low, maintaining accurate positioning under dynamic load.
The design withstands a maximum system pressure of 450 bar, defining the upper limit for overload events. The high-pressure side must stay above 25 bar to avoid cavitation and ensure continuous lubrication. Motor housing drainage tolerates a continuous internal pressure of 2 bar and momentary peaks up to 10 bar, so case lines should be routed with low restriction. A case volume of 0.2 l supports rapid oil exchange to remove heat from internal components. FKM fluoroelastomer seals permit case temperatures to rise to 103 °C without loss of elasticity, while also remaining functional for cold starts down to –25 °C.
Technical Specifications
Case Pressure (continuous Δp)
2 bar
Case Pressure Peak
10 bar
Case Volume
0.2 l
Direction Of Rotation
Bidirectional
Displacement
16 cm³/rev
Inlet Flow At Nominal Speed
128 l/min
Max Case Temp (fkm)
+103 °C
Maximum Pressure
450 bar
Min Start Temp (fkm)
-25 °C
Minimum Pressure (high-pressure Side)
25 bar
Nominal Pressure
400 bar
Nominal Speed
8000 rpm
Rotary Stiffness
1.59 kNm/rad
Seal Material
FKM (fluoroelastomer)
Torque At Nominal Pressure
102 Nm
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