Bosch Rexroth | A2FM10761W-VAB180F
A2FM107/61W-VAB180F
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The A2FM107/61W-VAB180F is manufactured by Bosch Rexroth for the A2FM Fixed Motors series and serves as a hydraulic drive element in automation circuits. It provides a geometric displacement of 106.7 cm³ per revolution so that, at the rated condition, the inlet flow reaches 427 L/min. A nominal pressure of 400 bar enables the motor to generate 679 Nm of torque, and bidirectional rotation supports reversible motion without external gearing. The internal case volume of 0.8 L contains leakage oil and moderates pressure fluctuations. Installation is handled through an ISO 3019-2 four-hole flange, while output torque is delivered via a W45×2×21×9g DIN 5480 splined shaft. An FKM seal minimizes external leakage, and the complete assembly has a mass of 32 kg.
The design permits continuous operation at 4000 rpm, with short-term overspeed up to 4400 rpm and angular accelerations reaching 4500 rad/s² for rapid duty cycles. Maximum working pressure is limited to 450 bar, providing a safety margin above the nominal rating. The rotating group features an inertia of 0.0116 kg·m², which reduces the energy required for speed changes, and a torsional stiffness of 11.2 kNm/rad, which limits shaft twist under load. Together, these dynamic characteristics allow the motor to handle frequent starts, stops, and load reversals in hydraulic automation systems without excessive mechanical strain.
Technical Specifications
Case Volume
0.8 l
Direction Of Rotation
Bidirectional
Displacement (geometric)
106.7 cm³/rev
Inlet Flow At N Nom
427 l/min
Max Angular Acceleration
4500 rad/s²
Max Overspeed (n Max)
4400 rpm
Max Speed (n Nom)
4000 rpm
Maximum Pressure
450 bar
Mounting Flange
ISO 3019-2 (4-hole)
Nominal Pressure
400 bar
Rotary Group Inertia
0.0116 kg·m²
Rotary Stiffness
11.2 kNm/rad
Seal Material
FKM
Shaft Spline
W45×2×21×9g (DIN 5480)
Torque At 400 Bar
679 Nm
Weight (approx.)
32 kg
1620 Old Apex Road
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