Bosch Rexroth | AA2FM6361W-VBD527
AA2FM63/61W-VBD527
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The AA2FM63/61W-VBD527 axial piston motor belongs to the A2FM Fixed Motors series and is manufactured by Bosch Rexroth for closed-loop hydraulic automation. With a displacement of 63 cm³ per revolution, the motor delivers a fixed volume of oil each rotation to drive mechanical loads. A nominal speed of 5000 rpm supports continuous duty, while a nominal pressure rating of 400 bar defines the steady operating limit. The torque constant of 1.00 Nm per bar means pressure rises translate directly into torque output, giving 351 Nm at 350 bar. Rotary stiffness of 6.25 kNm per radian limits shaft deflection, and a moment of inertia of 0.0042 kg·m² influences acceleration response.
For short periods the unit may work at a maximum pressure of 450 bar and an intermittent speed of 5500 rpm, extending its performance range without damage. These limits accommodate transient acceleration events in mobile or industrial drives. A maximum input flow of 315 L per minute is required when the motor operates at peak speed, ensuring adequate supply from the hydraulic pump. The internal housing holds 0.55 L, so case drainage must accommodate that volume. At 400 bar the output torque rises to 400 Nm, allowing higher load capacity when system pressure is elevated. The assembly weighs 18 kg, which affects mounting choices and handling during service.
Technical Specifications
Case Volume
0.55 L
Displacement
63 cm³/rev
Max Input Flow
315 L/min
Max Speed (intermittent)
5500 rpm
Maximum Pressure
450 bar
Moment Of Inertia
0.0042 kg·m²
Nominal Pressure
400 bar
Nominal Speed
5000 rpm
Rotary Stiffness
6.25 kNm/rad
Torque At 350 Bar
351 Nm
Torque At 400 Bar
400 Nm
Torque Constant
1.00 Nm/bar
Weight
18 kg
1620 Old Apex Road
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