Product Overview
The Rexroth A7VK0028MA/10VRSL4P550-0 (Material Number: R902186115) is a high-performance axial piston variable displacement pump engineered by Bosch Rexroth for demanding industrial hydraulic systems. Operating on the proven swashplate principle, this bent-axis design pump delivers exceptional volumetric efficiency and high-pressure capability with precise displacement control. The A7VK series is specifically configured for closed-loop hydrostatic transmission applications, providing smooth, infinitely variable flow control in both directions of rotation. With a nominal displacement of 28 cm³/rev and a pressure rating of 550 bar, this pump is ideally suited for high-pressure, high-reliability circuits found in mobile and industrial machinery requiring compact power density and superior control response.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Variable Displacement Pump (Bent-Axis Design) |
| Model Designation | A7VK0028MA/10VRSL4P550-0 |
| Material Number | R902186115 / 27416.0026 |
| Nominal Displacement | 28 cm³/rev |
| Operating Pressure | Up to 550 bar (peak) / 400 bar (continuous) |
| Control Type | Variable Displacement with Integrated Control (VRSL Configuration) |
| Mounting & Connection | Standard SAE / ISO Flange, Splined Shaft Interface |
| Rotation | Clockwise / Counter-Clockwise (Bi-directional Capability) |
Engineering Features & Advantages
- Precision Performance: Bent-axis axial piston design delivers high volumetric efficiency and stable flow across the entire displacement range, ensuring precise actuator control in closed-loop circuits.
- High-Pressure Capability: Rated for continuous operation up to 400 bar and peak pressures of 550 bar, enabling compact system design with high power density.
- Advanced Displacement Control: The VRSL control variant provides responsive, infinitely variable swashplate adjustment for smooth acceleration, deceleration, and directional changes.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with robust bearings and hardened piston/cylinder interfaces for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM specifications, ensuring drop-in replacement without system modification.
Typical Industrial Applications
This Rexroth A7VK series axial piston pump is commonly deployed in closed-loop hydrostatic drive systems across heavy industry, including plastic injection molding machines, metallurgical presses, construction and marine hydraulic systems, CNC machine tools, and mobile machinery requiring precise speed and torque control under high-pressure conditions.
PRODUCT IMAGES



REXROTH A7VK0028MA/10VRSL4P550-0 27416.0026 / R902186115 Axial Piston Variable Displacement Pump
⚡ 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 A7VK0028MA/10VRSL4P550-0 27416.0026 / R902186115 Axial Piston Variable Displacement Pump. This German-made hydraulic component features a swashplate design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





