Bosch Rexroth | AA2FM1661W-VBC530
AA2FM16/61W-VBC530
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The AA2FM16/61W-VBC530 belongs to the A2FM Fixed Motors series manufactured by Bosch Rexroth to provide steady displacement for hydraulic automation. It features a displacement of 16 cm³ per revolution so the delivered flow remains constant across its operating range. A nominal speed of 8000 rpm supports compact transmissions that require high shaft velocity, while an inlet flow of 128 l/min at that speed indicates how much pump capacity must be supplied. Continuous operation is supported at 400 bar nominal pressure, and momentary peaks can reach 450 bar to absorb brief overloads in the circuit. Bidirectional rotation lets the same motor drive or regenerate without mechanical changes. A housing pressure difference limited to 2 bar prevents excess load on shaft seals, and the use of FKM sealing material maintains reliability with common hydraulic fluids at elevated temperatures.
The internal case volume of 0.2 l controls the amount of oil retained for bearing lubrication and heat dissipation. Minimum high-pressure of 25 bar is required to keep internal components seated during low-load operation, while the combined pressure limit of 700 bar for ports a plus b defines the maximum differential that can exist across the motor. Torque output reaches 102 Nm at nominal pressure, delivering predictable rotational force to downstream shafts. A moment of inertia of 0.0004 kg·m² enables quick speed changes, and permissible angular acceleration up to 5000 rad/s² quantifies how rapidly those changes can occur. Rotary stiffness of 1.59 kNm/rad limits torsional deflection under load, preserving positioning accuracy in closed-loop drive systems.
Technical Specifications
Case Volume
0.2 l
Case Δp Continuous
2 bar
Direction Of Rotation
Bidirectional
Displacement
16 cm³/rev
Inlet Flow At Nominal Speed
128 l/min
Max Angular Acceleration
5000 rad/s²
Maximum Pressure
450 bar
Minimum High-pressure
25 bar
Moment Of Inertia
0.0004 kg·m²
Nominal Pressure
400 bar
Nominal Speed
8000 rpm
Rotary Stiffness
1.59 kNm/rad
Seal Material
FKM
Torque At Pnom
102 Nm
Total Pressure (a+b)
700 bar
1620 Old Apex Road
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