Bosch Rexroth 1PF2G2 Series Gear Pump | 1PF2G241/022RC20MB 1PFG2-4X | High Pressure Hydraulic Replacement

LIC Hydraulic’s 1PF2G2 and 1PFG2 series external gear pumps are engineered as premium, high-pressure replacements for Bosch Rexroth’s industrial standards. Designed for the 0PF, 1PF, 2PF, and 3PF families, these pumps excel in applications requiring continuous high-pressure performance and compact dimensions. We emphasize “100% Interchangeability” and “Zero-Defect Reliability”, subjecting every unit to rigorous simulated operational testing to guarantee seamless integration and OEM-level volumetric efficiency for global industrial users.

Technical Specifications (Bulleted List)

• Product Series: 1PF2G2 / 1PFG2 (Component Series 4X)

• Models Covered: 1PF2G241/022RC20MB, 1PFG2-4X/011RR20MR, 1PF2G2-40B/005RR19MR

• Displacement Range: 4.0 cm³/rev to 28.0 cm³/rev (Specifically 5.5cc, 11cc, and 22.5cc per the requested models)

• Nominal Pressure: Up to 250 bar (3625 PSI)

• Peak Pressure: Up to 280 bar (4060 PSI)

• Speed Range: 500 rpm to 3000 rpm

• Shaft Types: Tapered, Splined, or Parallel Keyed (as per C20/R20/R19 codes)

• Rotation: Clockwise (R) or Counter-Clockwise (L)

• Sealing Material: NBR (Standard) or FKM (High Temperature)

• Fluid Compatibility: Mineral oil HLP according to DIN 51524

Key Technical Advantages

• Axial and Radial Clearance Compensation: Utilizing floating bush technology, the pump automatically compensates for clearances using hydraulic pressure. This minimizes internal leakage and maintains high efficiency throughout the pump’s lifecycle.

• High-Precision Gear Profiling: Gears are manufactured from high-grade alloy steel, induction hardened, and micro-finished. This precision reduces mechanical noise and flow pulsation significantly.

• Heavy-Duty DU Bushings: The internal support features high-load DU composite bearings, providing exceptional anti-seizure properties and durability under continuous high-pressure duty cycles.

• High-Tensile Aluminum Housing: The body is constructed from premium die-cast aluminum alloy, offering an optimal strength-to-weight ratio and superior thermal dissipation for stable operation.

Application Areas

• Industrial Power Units: Ideal for machine tools, hydraulic presses, and injection molding machinery.

• Agricultural Equipment: Used in tractor lift systems and combine harvester steering circuits.

• Material Handling: Main hydraulic pump for forklifts, scissor lifts, and dock levelers.

• Mobile Hydraulics: Hydraulic systems for municipal waste compactors and road sweepers.

Expert Maintenance Tips

1. System Priming: Before full load operation, ensure the pump is filled with oil and rotated by hand. Run at low speed without pressure for several minutes to bleed air and prevent cavitation damage to the bronze bushings.

2. Filtration Protocol: To maximize service life, maintain oil cleanliness at ISO 4406 20/18/15 or better. A high-quality return line filter ($\beta_{10} \geq 100$) is mandatory.

3. Shaft Alignment: Ensure the pump shaft and motor shaft are perfectly aligned. Excessive radial or axial loads on the shaft can cause premature seal failure and bearing fatigue.