CBH-*5 External Gear Pump

CBH-*5 External Gear Pump

2 month ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

CBH-*5 External Gear Pump

1. Product Overview

CBH-*5 external gear pump is a fixed-displacement external meshing hydraulic gear pump. As a fundamental power component of the hydraulic system, it adopts floating axial clearance compensation structure. This hydraulic gear pump effectively controls internal leakage and maintains high volumetric efficiency during long continuous operation.

The wildcard mark * stands for optional different displacement specifications. Multiple choices are available for mounting flange, drive shaft type, oil port layout and rotation direction. Featuring compact structure and stable flow output, the pump can be used as interchangeable aftermarket spare parts for engineering machinery and general hydraulic equipment maintenance.

Model Code Explanation

- CBH: Series code of external meshing gear pump

- *: Variable displacement code (various flow options)

- 5: Structural specification code, defining installation dimension and pressure level

2. Main Technical Parameters

Item Specification

Pump Type Fixed displacement external meshing hydraulic gear pump

Rated Working Pressure 20 MPa

Maximum Peak Pressure 25 MPa

Operating Speed Range 600 ~ 2800 rpm

Volumetric Efficiency ≥92% under rated working condition

Pump Housing High-strength cast aluminum alloy

Shaft Configuration Flat key shaft; spline shaft optional

Oil Port Connection Threaded connection

Applicable Fluid ISO VG46, VG68 anti-wear hydraulic oil

Operating Temperature -20℃ ~ +80℃

Standard Seals NBR; FKM high temperature seals optional

3. Working Principle

Driven by motor or engine, a pair of meshing gears rotates inside the pump cavity. Vacuum is generated on the suction side to draw hydraulic oil, and the oil is transported to the pressure side and delivered into the hydraulic system.

The floating compensation plate automatically compensates axial clearance caused by friction wear, minimizing internal leakage and ensuring stable performance under long-hour operation.

4. Core Advantages

1. Axial clearance automatic compensation design, low internal leakage and stable efficiency.

2. Lightweight aluminum alloy housing, compact layout, convenient installation and overhaul.

3. Low vibration and low running noise, suitable for mobile machinery working conditions.

4. Good contamination resistance, adapting to complicated on-site operating environments.

5. Rich displacement and installation form options to satisfy diverse matching demands.

6. Cost-effective alternative spare part for original hydraulic gear pump.

5. Application Range

This hydraulic gear pump serves as power source of hydraulic system, widely applied in forklifts, small wheel loaders, sanitation vehicles, general hydraulic power units, light industrial machinery and logistics equipment.

6. Common Faults & Replacement Suggestion

Typical failures: Insufficient output flow, unable to reach rated pressure, shaft seal oil leakage, abnormal operating noise.

Firstly check hydraulic oil cleanliness and filter element condition. Replace the complete gear pump assembly if gears, shaft sleeves and compensation plates suffer severe wear.

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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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