Product Overview
The Rexroth A10VSO 28 DR/31R-PPA12N00 (R902472184) 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 pump features a 28 cm³/rev nominal displacement and is configured with a DR pressure controller, which automatically adjusts pump displacement to maintain a constant system pressure regardless of load variations. The A10VSO series is widely regarded as an industry benchmark for open-circuit hydrostatic drives, delivering exceptional volumetric efficiency, precise pressure control, and long service life in continuous-duty applications. With its compact SAE mounting interface and through-drive capability, the A10VSO 28 integrates seamlessly into multi-pump configurations and OEM hydraulic power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A10VSO 28 DR/31R-PPA12N00 / R902472184 |
| Nominal Displacement | 28 cm³/rev |
| Control Type | DR – Pressure Controller (constant pressure regulation) |
| Operating Pressure | Up to 280 bar continuous / 350 bar peak (standard industrial grade) |
| Mounting & Connection | SAE 2-bolt flange, ISO standard port connections |
| Direction of Rotation | Clockwise (viewed from shaft end) |
| Shaft Type | Spline shaft, SAE standard |
Engineering Features & Advantages
- Precision Swashplate Performance: The axial piston swashplate design delivers smooth, infinitely variable displacement with high volumetric and mechanical efficiency across the full operating range.
- DR Pressure Control: The integrated DR controller maintains constant system pressure by automatically adjusting pump displacement to match flow demand, reducing energy consumption and heat generation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with robust bearings, hardened piston shoes, and a durable valve plate for extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification.
- Compact & Modular Design: Short overall length and through-drive option allow space-saving installation and tandem pump configurations.
Typical Industrial Applications
This pump is ideally suited for plastic injection molding machines, metallurgical presses, CNC machine tools, and general industrial hydraulic power units. It is also commonly deployed in construction machinery, marine hydraulics, and automated production lines where precise pressure control and reliable variable flow are critical to system performance.
PRODUCT IMAGES

Rexroth A10VSO 28 DR/31R-PPA12N00 / R902472184 Axial Piston Variable Pump
âš¡ 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 A10VSO 28 DR/31R-PPA12N00 / R902472184 Variable Displacement Pump. This Germany-made hydraulic pump features a swashplate design with pressure and flow control, delivering leak-free, reliable fluid power for heavy-duty industrial systems.