Rexroth A10FM Series Piston Motor | A10FM21/52W-VKC64N000-SO309 | A10FM28 A10FM37 A10FM45

The Rexroth A10FM Series from LIC Hydraulic is a premier line of Fixed Displacement Axial Piston Motors engineered for both industrial and mobile hydraulic circuits. Leveraging the proven swashplate technology, models such as the A10FM21/52W-VKC64N000-SO309 provide a reliable and constant output torque for tasks where variable control is handled by the pump or valve bank. These motors are the industry gold standard for high-duty cycle applications requiring high rotational speeds. We provide 100% drop-in replacements, ensuring precise mechanical alignment with original Bosch Rexroth mounting flanges, shafts, and porting.

Technical Highlights

• Displacements: $10, 11, 14, 16, 18, 21, 23, 28, 37, 45, 58, 63\text{ cc/rev}$.

• Max Pressure: Continuous duty up to $280\text{ bar}$ ($4060\text{ psi}$), Peak up to $350\text{ bar}$.

• Design: Swashplate-style axial piston, fixed displacement.

• Series: High-performance 52 and 53 design series.

Core Advantages

• Exceptional Rotational Speed: The A10FM series is optimized for high-speed operation, making it perfect for driving fans, brushes, and auxiliary gearboxes in mobile machinery.

• High Mechanical Efficiency: Precision-ground valve plates and piston groups minimize internal friction and bypass leakage, ensuring more hydraulic power is converted into mechanical work.

• Robust Service Life: Featuring heavy-duty bearings and a rigid swashplate assembly, the A10FM21 delivers stable performance even under fluctuating load conditions and high-vibration environments.

• Interchangeable Mounting Options: Available with standard SAE and ISO 4-bolt or 2-bolt flanges, providing seamless integration into existing equipment without modifying mounting brackets.

Expert Maintenance Tips

• Case Drain Installation: For all A10FM motors, the case drain port MUST be connected directly to the reservoir. Ensure the drain line is oriented to keep the motor housing full of oil at all times to lubricate the bearings and swashplate.

• System Flushing: When replacing a failed motor, it is vital to clean the entire circuit. Fine metal particles from a previously damaged unit can quickly score the new motor’s piston shoes and valve plate.

• Filtration Standard: Maintain hydraulic fluid cleanliness at ISO 18/16/13. Piston motors have extremely tight tolerances; particle contamination is the primary cause of volumetric efficiency loss.