Product Overview
The Rexroth A4VG140EP4D1/32R-NAF02F021DP (Material Number: R902155995) is a high-performance axial piston variable displacement pump engineered by Bosch Rexroth for closed-circuit hydrostatic transmissions. Featuring a swashplate design with axial pistons and a bent-axis rotary group, this pump delivers precise, infinitely variable displacement control proportional to the swashplate angle. The A4VG series is purpose-built for demanding mobile and industrial applications requiring high pressure, compact installation, and reliable bidirectional flow. With a nominal displacement of 140 cm³/rev, this unit is configured with an EP (electric proportional) control, a D1 through-drive configuration, and a NAF02F021 valve/control variant, making it a direct-fit solution for OEM closed-loop drive systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump — Axial Piston Variable Displacement (Closed Circuit) |
| Model Designation | A4VG140EP4D1/32R-NAF02F021DP |
| Material Number | R902155995 |
| Nominal Displacement | 140 cm³/rev |
| Working Principle | Swashplate axial piston, bent-axis rotary group, infinitely variable displacement |
| Control Type | EP — Electric Proportional displacement control |
| Operating Pressure | High-pressure industrial grade (up to 450 bar peak / 400 bar continuous) |
| Direction of Rotation | Reversible (clockwise / counter-clockwise) |
| Mounting & Connection | SAE flange, standard Rexroth closed-circuit porting interface |
| Through-Drive | D1 configuration — tandem/through-drive capable |
Engineering Features & Advantages
- Precision Performance: Swashplate axial piston design with electric proportional (EP) control enables infinitely variable displacement and precise flow matching to system demand, delivering smooth, responsive closed-loop hydrostatic transmission control.
- High-Pressure Capability: Robust bent-axis rotary group and heavy-duty bearings support continuous high-pressure operation up to 400 bar, ideal for high-torque, high-load drive systems.
- Compact & Efficient: High power density in a compact housing reduces installation envelope while maintaining excellent volumetric and overall efficiency.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
With a nominal displacement of 140 cm³/rev, this unit is configured with an EP (electric proportional) control, a D1 through-drive configuration, and a NAF02F021 valve/control variant, making it a direct-fit solution for OEM closed-loop drive systems.
PRODUCT IMAGES
REXROTH A4VG140EP4D1/32R-NAF02F021DP / R902155995 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 A4VG140EP4D1/32R-NAF02F021DP / R902155995 Axial Piston Variable Displacement Pump. This Germany-made hydraulic component features a swashplate design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
