Product Overview
The Rexroth PGH4-30/040RE11VE4 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 gear driving an internally toothed ring gear, with a crescent-shaped filler piece separating the suction and pressure chambers. The PGH4 series is renowned for its exceptionally low noise emission, minimal pressure pulsation, and outstanding volumetric efficiency, making it a preferred solution for precision-driven hydraulic circuits. With a nominal displacement of 40 cm³/rev and a size 4 frame, the PGH4-30/040RE11VE4 delivers reliable, continuous flow for medium-to-high pressure industrial applications where smooth operation and long service life are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Internal Gear Pump (Fixed Displacement) |
| Model Designation | PGH4-30/040RE11VE4 |
| Series / Frame Size | PGH4 Series — Size 4 |
| Nominal Displacement | 40 cm³/rev |
| Operating Pressure | Continuous up to 250 bar; Peak up to 315 bar |
| Speed Range | Up to 3,000 rpm (dependent on fluid viscosity) |
| Mounting & Connection | Standard ISO 4-hole flange; SAE / DIN port connections |
| Rotation Direction | Clockwise (viewed from drive shaft) |
| Hydraulic Fluid | Mineral oil HL/HLP per DIN 51524; viscosity 10–300 mm²/s |
Engineering Features & Advantages
- Precision Performance: The internal gear tooth geometry and crescent filler design deliver smooth, low-pulsation flow with exceptional volumetric efficiency, ensuring stable actuator movement and reduced system noise below 70 dB(A) in typical operating conditions.
- Hydrodynamic Lubrication: The gap-optimized bearing design between the pinion, ring gear, and filler piece creates a hydrodynamic lubricating film that minimizes wear and extends service intervals even under continuous high-pressure duty.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened gear surfaces and a rigid casing that withstands pressure spikes and thermal cycling without deformation.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth PGH4 mounting flanges, shaft ends, and port configurations, enabling drop-in replacement without system modification.
- 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 40 cm³/rev and a size 4 frame, the PGH4-30/040RE11VE4 delivers reliable, continuous flow for medium-to-high pressure industrial applications where smooth operation and long service life are critical.
PRODUCT IMAGES
Rexroth PGH4-30/040RE11VE4 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 PGH4-30/040RE11VE4 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.