CBNZQ-F5 External Gear Pump

CBNZQ-F5 External Gear Pump

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

CBNZQ-F5 External Gear Pump

(Embedded keywords: hydraulic system, Hydraulic gear pump)

1. Product Overview

The CBNZQ-F5 external gear pump is a compact medium-pressure hydraulic gear pump widely used in mobile machinery hydraulic system. This pump adopts high-strength cast iron end covers and aluminum alloy main housing, equipped with precision ground gear pairs and floating side plate automatic clearance compensation structure. With F5 specification flange connection design, it features small volume, light weight, low noise and excellent anti-pollution performance. It runs reliably under intermittent load conditions, mainly used as working pump and steering pilot pump for small loaders, sanitation vehicles, agricultural machinery, forklifts and miniature hydraulic power units. With unified standard installation dimensions, it can perfectly replace the original OEM pumps for maintenance replacement.

Model Code Explanation

CBNZQ: Series code of compact external gear pump; F5 stands for flange oil port type and 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 axial 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 options 5~50ml/r optional

3. Working Principle

Driven by the input shaft, a pair of meshing gears rotates synchronously. Negative pressure is formed in the suction chamber to draw hydraulic oil from the tank. The gear teeth carry oil to the pressure side and deliver pressurized fluid to all branches of the hydraulic system. The floating side plates automatically compensate the axial clearance generated by gear wear during long-time operation, reduce internal leakage effectively, and maintain stable efficiency of the hydraulic gear pump in continuous operation.

4. Core Advantages

1. Aluminum alloy main body, light weight and compact structure, suitable for limited installation space.

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

3. Optimized gear profile ensures low noise and small flow pulsation during operation.

4. Good contamination resistance, adapts to dusty outdoor working environment.

5. Flange oil port design reduces pipeline vibration and leakage points.

6. Standard installation size, plug-and-play without modifying pipelines.

7. Simple structure, low failure rate and easy maintenance.

5. Application Range

This hydraulic gear pump is extensively applied in the hydraulic system of mini wheel loaders, road sweepers, garbage trucks, harvesters and industrial forklifts, used for main circuit oil supply and steering auxiliary circuit.

6. Common Faults & Replacement Suggestion

Replace the whole pump assembly if these problems occur: insufficient system pressure, slow movement of hydraulic components, oil leakage at shaft seal and mating 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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