REXROTH

PGF3-3X/040RJ07VU2 Internal Gear Pump R900931426

The Bosch Rexroth PGF3-3X/040RJ07VU2 internal gear pump, material number R900931426, is a fixed-displacement hydraulic pump for industrial and mobile hydraulic applications. It belongs to the Bosch Rexroth PGF internal gear pump series, which is designed for low operating noise, low flow pulsation and high efficiency through sealing gap compensation. The complete model and material number should always be used together for accurate purchasing and replacement: PGF3-3X/040RJ07VU2 / R900931426.

According to Bosch Rexroth PGF technical data, PGF pumps are gap-compensated internal gear pumps with constant displacement. The series includes frame sizes 1, 2 and 3, with component series 3X used for frame size 3. For this specific PGF3-3X/040RJ07VU2 internal gear pump, the PGF3 section identifies frame size 3, the 3X section identifies component series 30 to 39, and the 040 size corresponds to a displacement of 40.5 cm³/rev. The official Bosch Rexroth product reference for this item is material number R900931426.

The model code PGF3-3X/040RJ07VU2 contains important configuration details for correct replacement. The “R” code indicates clockwise rotation when viewed on the drive shaft. The “J” code identifies a splined shaft to SAE J744 with involute tooth system according to ANSI B92.1a. The “07” code indicates suction and pressure port according to SAE J518. The “V” code indicates FKM seals, and the “U2” code indicates an SAE 2-hole mounting flange. These details must be checked carefully because similar Rexroth PGF pumps may not be interchangeable.

The operating principle of the PGF3-3X/040RJ07VU2 internal gear pump supports stable and quiet hydraulic operation. In the pump design, the pinion shaft drives the internal gear. During rotation, the chamber volume increases on the suction side, allowing hydraulic fluid to enter the pump. The segment filler element separates the suction chamber from the pressure chamber, and the fluid is displaced through the pressure channel as the gear teeth mesh. This internal gear design helps reduce flow and pressure pulsation, supporting low-noise hydraulic operation.

Bosch Rexroth PGF pumps are designed with sealing gap compensation, slide bearings and a structure suitable for broad viscosity and speed ranges. The series is also known for very good suction characteristics and low flow pulsation. These features make the Bosch Rexroth PGF3-3X/040RJ07VU2 internal gear pump R900931426 suitable for hydraulic systems where stable fixed-displacement flow, reliable suction behavior and reduced noise level are important.

This pump is commonly relevant for hydraulic power units, machine tools, presses, industrial production machinery, mobile equipment, fans, lifting systems and other hydraulic circuits using a fixed-displacement pump. Bosch Rexroth PGF pumps can also be combined with other PGF internal gear pumps, PGH internal gear pumps, PV7 vane pumps and axial piston pumps depending on the hydraulic system design. The final pump selection should always be checked against the original machine documentation.

For procurement teams and maintenance engineers, the key purchasing reference is the complete Bosch Rexroth model PGF3-3X/040RJ07VU2 plus material number R900931426. Short descriptions such as “PGF3 pump” or “Rexroth internal gear pump” are not enough for accurate replacement. Buyers should confirm the complete model code, material number, displacement, rotation direction, shaft type, port connection, seal material and mounting flange before ordering.

Before installing or replacing this pump, hydraulic operating conditions should also be reviewed. Important points include hydraulic fluid type, viscosity range, suction conditions, filtration, operating speed, pressure limits and installation position. If the pump is required for urgent downtime repair or scheduled maintenance, clear photos of the old pump nameplate, shaft side, port side and mounting flange can help confirm whether the requested PGF3-3X/040RJ07VU2 internal gear pump matches the existing unit.

Hydraulics Worldwide supplies hydraulic pumps, valves and industrial spare parts for international customers. If you are sourcing the Bosch Rexroth PGF3-3X/040RJ07VU2 internal gear pump R900931426, send us the full model code, required quantity and delivery destination for quotation support. You can also browse more hydraulic components from Hydraulics Worldwide or verify the manufacturer reference on the Bosch Rexroth official product page.

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