Product Overview
The Rexroth A2FE90/61W-VAL100 (Material Number: R902137837) is a high-performance axial piston fixed displacement motor engineered by Bosch Rexroth for demanding industrial and mobile hydraulic drive systems. Utilizing the proven bent-axis working principle, this motor converts hydraulic pressure into reliable rotational torque with exceptional volumetric and mechanical efficiency. The A2FE series is specifically designed for both open and closed circuit applications, delivering consistent power density in a compact, robust package. With a nominal displacement of 90 cm³/rev and the “61” series designation, this unit represents the latest evolution of Rexroth’s fixed motor technology, offering superior starting torque characteristics and high-speed capability for rigorous duty cycles.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Fixed Displacement Motor (Bent-Axis Design) |
| Model Designation | A2FE90/61W-VAL100 |
| Material Number | R902137837 |
| Nominal Displacement | 90 cm³/rev |
| Operating Pressure | Up to 400 bar (peak) / 315 bar (continuous) — Standard Industrial Grade |
| Mounting & Connection | Standard ISO 4-Hole Flange / SAE Splined Shaft Interface |
| Direction of Rotation | Bi-directional (Clockwise / Counter-Clockwise) |
| Circuit Compatibility | Open Circuit and Closed Circuit Systems |
Engineering Features & Advantages
- Precision Performance: The bent-axis axial piston design delivers high starting torque and excellent low-speed smoothness, ensuring precise control in dynamic drive applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, featuring heavy-duty bearings and a hardened cylinder block for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including the “W” series mounting flange and VAL100 control variant.
- High Power Density: Compact footprint relative to displacement allows for efficient integration into space-constrained machinery without sacrificing torque output.
- Optimized Efficiency: Precision-machined piston/cylinder interfaces minimize internal leakage and volumetric losses, reducing heat generation and energy consumption.
Typical Industrial Applications
This Rexroth A2FE90 motor is ideally suited for heavy-duty drive functions in plastic injection molding machines, metallurgical presses, construction and marine winch drives, and CNC machine tool rotary indexing tables. Its robust fixed-displacement design is also commonly deployed in mobile hydraulic fan drives, conveyor systems, and specialized automation equipment requiring consistent torque under variable load conditions.
PRODUCT IMAGES

Rexroth A2FE90/61W-VAL100 / R902137837 Axial Piston Fixed Displacement Motor
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH A2FE90/61W-VAL100 / R902137837 Axial Piston Fixed Displacement Pump. This Germany-made hydraulic pump features a compact, high-performance design, delivering reliable fluid power for heavy-duty industrial systems.