Product Overview
The Rexroth PGF1-21/1.7RE01VU2 (Material Number: R900086159) is a precision-engineered internal gear pump from the Bosch Rexroth PGF series, designed for reliable hydraulic power generation in industrial and mobile applications. This fixed-displacement internal gear pump operates on the proven principle of a pinion gear rotating within an internally toothed ring gear, separated by a crescent-shaped filler piece. The resulting pressure-balanced design delivers smooth, low-pulsation flow with exceptional volumetric efficiency. With a nominal displacement of approximately 1.7 cm³/rev and a frame size of 21, this compact unit is ideally suited for lubrication systems, low-pressure hydraulic circuits, and pilot pressure supply duties where consistent flow and quiet operation are paramount.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Internal Gear Pump |
| Model Designation | PGF1-21/1.7RE01VU2 / R900086159 |
| Series | Bosch Rexroth PGF1 Series (Internal Gear) |
| Nominal Displacement | 1.7 cm³/rev |
| Frame Size | 21 |
| Operating Pressure | Continuous duty up to 210 bar peak / 160 bar continuous (standard PGF1 range) |
| Speed Range | Up to 3,000 rpm (dependent on fluid viscosity and pressure) |
| Mounting & Connection | Standard SAE / ISO flange mounting; threaded port connections per Rexroth PGF1 standard |
| Rotation Direction | Clockwise (viewed from drive shaft) |
| Shaft Type | Cylindrical shaft with keyway (standard) |
| Seal Material | NBR (Buna-N) standard; FKM available on request |
| Hydraulic Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HV) per DIN 51524 |
Engineering Features & Advantages
- Precision Performance: The hydraulic internal gear pump delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
With a nominal displacement of approximately 1.7 cm³/rev and a frame size of 21, this compact unit is ideally suited for lubrication systems, low-pressure hydraulic circuits, and pilot pressure supply duties where consistent flow and quiet operation are paramount.
PRODUCT IMAGES
Rexroth PGF1-21/1.7RE01VU2 / R900086159 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 PGF1-21/1.7RE01VU2 / R900086159 Internal Gear Pump. This Germany-made hydraulic component features a fixed displacement internal gear design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.