CBHB-F5 External Gear Pump
1. Product Overview
CBHB-F5 external gear pump is a fixed displacement external meshing hydraulic gear pump. As an essential power component of the hydraulic system, it adopts optimized axial clearance compensation structure. The pump features compact overall layout, stable flow output and high volumetric efficiency during continuous operation.
Multiple specifications of installation flange, drive shaft, oil port direction and rotation direction are available for selection. This hydraulic gear pump can be widely matched to engineering machinery, hydraulic power packs, metallurgical equipment and logistics machinery, and can serve as a replacement spare part for original pumps.
Model Code Explanation
- CBHB: Series designation of external meshing gear pump
- F5: Series specification code, representing the design structure, mounting 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 condition
Housing Material High-strength cast aluminum alloy
Shaft Form Flat key shaft (spline shaft optional)
Oil Port Form Thread connection
Applicable Medium ISO VG46 / VG68 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +80℃
Standard Sealing Parts NBR; FKM high-temperature sealing optional
3. Working Principle
When the driving shaft drives the pair of meshing gears to rotate, a vacuum area is formed on the oil suction side, and hydraulic oil is sucked into the pump chamber. The gear carries the hydraulic oil to the pressure oil side, and the oil is squeezed out and delivered to the hydraulic system.
The floating compensation plate automatically compensates the axial clearance generated by friction wear, effectively reduces internal leakage, and keeps stable volumetric efficiency for long-term operation.
4. Core Advantages
1. Axial automatic clearance compensation structure, low internal leakage and stable working efficiency.
2. Lightweight aluminum alloy pump body, compact structure, convenient installation and maintenance.
3. Smooth operation, low vibration and low noise.
4. Strong anti-pollution performance, adaptable to various complex working conditions.
5. Complete installation specifications, convenient interchange with similar gear pumps.
6. High cost performance, ideal aftermarket spare part choice for equipment maintenance.
5. Application Range
This hydraulic gear pump provides power source for the hydraulic system, widely used in forklifts, small loaders, sanitation vehicles, general hydraulic stations, light industrial machinery and other hydraulic equipment.
6. Common Faults & Replacement Suggestion
Common malfunctions: Insufficient output flow, failure to reach rated pressure, oil leakage at shaft seal, abnormal operating noise.
First inspect the cleanliness of hydraulic oil and filter element. If gears, shaft sleeves and compensation plates suffer serious wear, replace the complete gear pump assembly.
