Bosch Rexroth | AA2FM3261W-VSD520
AA2FM32/61W-VSD520
Request a Quote
Available, Ships in 1-2 weeks
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The AA2FM32/61W-VSD520 fixed motor is built by Bosch Rexroth for the A2FM Fixed Motors series and serves as a hydraulic prime mover in automated systems. A geometric displacement of 32 cm³ per revolution defines how much hydraulic fluid the motor delivers each shaft turn, enabling predictable flow calculation. The direction of rotation is bidirectional so the motor can drive or be driven in either sense without mechanical changes. At a nominal pressure of 400 bar, the shaft produces 204 Nm of torque, supplying consistent rotary force to downstream components. The inlet flow at nominal speed reaches 202 l/min, which sets the pump or valve sizing required for proper supply. The motor sustains a continuous speed of 6300 rpm, allowing high-speed operation during extended duty cycles. A moment of inertia of 0.0012 kg·m² assists quick speed changes because less energy is stored in the rotating group. Rotary stiffness of 3.12 kNm/rad limits torsional deflection, maintaining drive accuracy when load fluctuates.
The unit tolerates an intermittent speed of 6900 rpm, giving extra headroom for brief velocity peaks in dynamic cycles. A maximum angular acceleration of 6500 rad/s² supports rapid start-stop sequences common in servo-controlled hydraulics. Maximum working pressure is 450 bar, defining the highest continuous line load the motor can withstand. The total pressure rating of 700 bar indicates the allowable sum of high-pressure and case pressure during transient events. The high-pressure side must remain above 25 bar to avoid cavitation and ensure adequate internal lubrication. Case pressure can peak at 10 bar for less than 0.1 s, permitting short surges caused by load reversals. A continuous case pressure differential of 2 bar limits drain line backpressure so seals are not overstressed. The internal case volume is 0.2 l, providing space for leakage oil before it returns to the reservoir.
Technical Specifications
Case Pressure Peak
10 bar (t < 0.1 s)
Case Volume
0.2 l
Case Δp (continuous)
2 bar
Direction Of Rotation
Bidirectional
Geometric Displacement
32 cm³/rev
Inlet Flow At Nominal Speed
202 l/min
Max Angular Acceleration
6500 rad/s²
Max Continuous Speed
6300 rpm
Max Intermittent Speed
6900 rpm
Maximum Pressure
450 bar
Min Pressure (high-pressure Side)
25 bar
Moment Of Inertia
0.0012 kg·m²
Nominal Pressure
400 bar
Rotary Stiffness
3.12 kNm/rad
Torque At Nominal Pressure
204 Nm
Total Pressure
700 bar
1620 Old Apex Road
Shipping & Payment Options
