CBN-F5 External Gear Pump

CBN-F5 External Gear Pump

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

CBN-F5 External Gear Pump

1. Product Overview

The CBN-F5 external gear pump is a widely used medium-pressure aluminum alloy hydraulic gear pump, specially designed for general mobile machinery hydraulic system. The pump adopts lightweight die-cast aluminum alloy housing, precision nitrided gear pairs and floating side plate axial clearance compensation structure. The suffix F5 represents flange port connection and standard pressure grade. With advantages of compact structure, light weight, stable performance and outstanding anti-contamination ability, this hydraulic gear pump can work steadily under variable load and frequent start-stop conditions. It is commonly used as main oil supply pump and pilot pump for forklifts, small loaders, sanitation vehicles, agricultural machinery and miniature hydraulic power packs. With standardized mounting dimensions, it can directly replace original OEM pumps for easy aftermarket replacement.

Model Code Explanation

CBN: Classic compact external gear pump series; F5 refers to flange oil port configuration and 16MPa pressure grade.

2. Main Technical Parameters

Item Specification

Pump Type External meshing hydraulic gear pump

Rated Working Pressure 16 MPa

Maximum Intermittent Peak Pressure 20 MPa

Rotational Speed Range 700 ~ 3000 rpm

Internal Structure Floating side plate compensation, radial hydraulic balance structure

Standard Seals HNBR nitrile rubber; FKM high temperature resistant seals optional

Applicable Hydraulic Fluid ISO VG46, VG68 anti-wear hydraulic oil

Operating Temperature Range -20℃ ~ +90℃

Mounting Form Standard diamond flange

Volumetric Efficiency ≥90%

Displacement range 6ml/r ~ 50ml/r available

3. Working Principle

When driven by input shaft, a pair of meshing gears rotates synchronously. Negative pressure generates in the suction cavity and draws hydraulic oil from reservoir. Gear teeth convey pressurized oil to the outlet and supply consistent flow to every branch of the hydraulic system. The floating side plates automatically compensate the axial clearance caused by long-term wear, minimize internal leakage and ensure the hydraulic gear pump maintains high efficiency during continuous operation.

4. Core Advantages

1. Lightweight aluminum alloy structure, small overall size for narrow installation space.

2. Floating side plate design reduces internal leakage and keeps stable pressure output.

3. Optimized gear tooth profile brings low noise and minor flow pulsation.

4. Excellent dust resistance, suitable for dusty construction and farm working sites.

5. Flange type oil ports reduce vibration and external leakage risk.

6. Standard interchangeable dimensions, plug-and-play installation without pipe modification.

7. Simple structure, low failure rate and convenient field maintenance.

5. Application Range

This hydraulic gear pump is widely equipped in hydraulic system of industrial forklifts, mini wheel loaders, road sweepers, waste trucks, agricultural tractors and small hydraulic units, serving for main circuit and steering pilot circuit oil supply.

6. Common Faults & Replacement Suggestion

Replace the complete pump assembly if these faults appear: insufficient system pressure, slow cylinder action, oil leakage on shaft seal and joint surface, abnormal grinding noise inside pump body.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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