Product Overview
The Rexroth A2FM125/61W-VAB020 (Material Number: R902137690) is a high-performance axial piston fixed displacement motor from the renowned Bosch Rexroth A2FM series. Engineered with a bent-axis rotary group design, this motor converts hydraulic pressure into reliable rotational mechanical power with exceptional efficiency. The A2FM125 features a nominal displacement of 125 cm³/rev and is specifically configured with the “W” designation for SAE flange mounting with a splined shaft. As a fixed displacement unit, it delivers consistent torque output proportional to system pressure, making it ideal for demanding industrial and mobile applications requiring precise, repeatable rotary motion. The “61” series designation indicates the latest generation of Rexroth’s proven A2FM platform, incorporating advanced manufacturing tolerances and materials for extended service life.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Fixed Displacement Motor |
| Model Designation | A2FM125/61W-VAB020 |
| Material Number | R902137690 |
| Nominal Displacement | 125 cm³/rev |
| Operating Pressure | Up to 400 bar (peak), 315 bar (continuous) |
| Mounting & Connection | SAE flange with splined shaft (W configuration) |
| Direction of Rotation | Bi-directional (reversible) |
| Speed Range | Up to 3,000 rpm (dependent on circuit pressure) |
Engineering Features & Advantages
- Precision Performance: Bent-axis rotary group design delivers high volumetric and mechanical efficiency across the entire speed and pressure range, ensuring consistent torque output for precise motion control.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with robust bearings, hardened piston surfaces, and optimized lubrication paths for extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including SAE flange mounting and splined shaft interface for drop-in installation.
- High Power Density: Compact axial piston design provides exceptional power-to-weight ratio, ideal for space-constrained installations without compromising performance.
- Flexible Integration: Bi-directional operation and compatibility with a wide range of hydraulic fluids and control systems enable seamless integration into diverse hydraulic circuits.
Typical Industrial Applications
The Rexroth A2FM125/61W-VAB020 axial piston fixed displacement motor is widely deployed in heavy-duty industrial and mobile hydraulic systems. Common applications include plastic injection molding machines where precise rotary motion and high torque are essential, metallurgical presses and rolling mills requiring reliable continuous operation under extreme loads, construction and marine hydraulics such as winch drives, slew drives, and propeller systems, as well as CNC machine tools and rotary indexing tables demanding accurate speed and position control. Its robust construction and high-pressure
PRODUCT IMAGES
Rexroth A2FM125/61W-VAB020 / R902137690 Axial Piston Fixed Displacement Motor
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Rexroth A2FM125/61W-VAB020 / R902137690 Fixed Displacement Axial Piston Motor. This Germany-made high-pressure hydraulic component features a bent-axis design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.