CBT-F4 External Meshing Gear Oil Pump

4 month ago

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4 year

Product details

CBT-F4 External Gear Pump

1. Product Overview

CBT-F4 external gear pump is a fixed displacement high-pressure external meshing hydraulic gear pump. Equipped with floating axial clearance automatic compensation structure, the pump effectively minimizes internal leakage and maintains stable volumetric efficiency under continuous working conditions.

Multiple configurations are optional, including drive shaft type, mounting flange, oil port direction and rotation direction. It can be used as interchange spare parts for mobile engineering machinery and general hydraulic equipment overhaul.

Model Code Explanation

- CBT: Series code of external meshing gear pump

- F4: Structural specification code, representing installation dimensions and pressure grade

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

Housing Material High-strength cast aluminum alloy

Shaft Form Flat key shaft; spline shaft optional

Oil Port Connection Thread 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

The driving shaft drives a pair of meshing gears to rotate in the pump cavity. Vacuum is generated on the suction side to draw hydraulic oil into the pump. The gears transport hydraulic oil to the pressure side and deliver pressurized oil to the hydraulic circuit.

The floating compensation plate automatically compensates axial clearance produced by friction wear, restrains internal leakage and ensures reliable long-term operation.

4. Core Advantages

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

2. Lightweight aluminum alloy pump body, compact structure, convenient installation and maintenance.

3. Low vibration and low running noise during operation.

4. Excellent anti-pollution performance, adaptable to various harsh working environments.

5. Complete installation specifications to meet different equipment matching requirements.

6. High cost performance, ideal aftermarket replacement gear pump.

5. Application Range

Serving as the power source of hydraulic system, this gear pump is widely applied to forklifts, small loaders, road rollers, sanitation vehicles, agricultural machinery and general hydraulic power units.

6. Common Faults & Replacement Suggestion

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

Check hydraulic oil cleanliness and filter element firstly. 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

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

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