Product Overview
The Rexroth PGF3-31/032RE07VE4 (Material Number: R900953112) is a high-performance internal gear pump engineered by Bosch Rexroth for demanding industrial hydraulic systems. Operating on the proven internal gear principle, this fixed-displacement pump features a pinion shaft driving an internally toothed ring gear, with a crescent-shaped filler piece separating the suction and pressure chambers. This design delivers exceptionally smooth, low-pulsation flow with minimal noise emission, making it ideal for applications where quiet operation and precise volumetric consistency are critical. The PGF3 series is a compact, robust unit widely specified in plastic injection molding machines, machine tools, and general industrial power packs requiring reliable medium-pressure hydraulic supply.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Internal Gear Pump (Fixed Displacement) |
| Model Designation | PGF3-31/032RE07VE4 / R900953112 |
| Series | Rexroth PGF3 Series (Size 3) |
| Geometric Displacement | 32 cm³/rev (nominal, per model code 032) |
| Operating Pressure | Continuous up to 210 bar / Peak up to 250 bar (standard PGF3 range) |
| Speed Range | Up to 3,000 rpm (dependent on fluid viscosity and pressure) |
| Mounting & Connection | Standard SAE / ISO 4-bolt flange, splined or keyed shaft options |
| Hydraulic Fluid | Mineral oil HL/HLP per DIN 51524; viscosity range 10–300 mm²/s |
| Direction of Rotation | Clockwise (viewed from drive shaft end, per VE4 designation) |
Engineering Features & Advantages
- Low-Noise Internal Gear Design: The crescent-type internal gear mesh and optimized tooth geometry significantly reduce pressure pulsation and airborne noise, ideal for noise-sensitive industrial environments.
- High Volumetric Efficiency: Precision-ground gear teeth and tight axial clearances minimize internal leakage, ensuring consistent flow output across the operating pressure range.
- Robust Cast Iron Casing: Durable housing construction withstands continuous duty cycles and moderate contamination without premature wear, extending service intervals.
- Compact Footprint: The PGF3 size 3 frame offers high power density in a space-saving envelope, simplifying integration into existing manifold and power unit designs.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM specifications, including the R900953112 material number, ensuring drop-in interchangeability.
PRODUCT IMAGES
Rexroth PGF3-31/032RE07VE4 / R900953112 Internal Gear 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 PGF3-31/032RE07VE4 / R900953112 Internal Gear Pump. This Germany-made high-pressure hydraulic component features a fixed displacement internal gear design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.