Analysis of Common Bearing Bush Failures: Wear, Cracks, and Corrosion Emerge as Major Risks

As a core component of mechanical equipment, the operating condition of bearing bushes directly affects the stability and service life of the equipment. However, during daily operation, bearing bushes often fail due to various factors, leading to reduced performance or even shutdown. Industry experts point out that common failures of bearing bushes mainly fall into three categories: wear, cracks, and corrosion/rust, which require high attention from the industry.

Wear: Performance Degradation Due to Long-Term Friction
During prolonged operation, the continuous friction on bearing bushes causes gradual material loss on the surface, thinning the thickness, and in severe cases, even leading to flaking. Experts indicate that accelerated wear is often closely related to poor lubrication, overload operation, or cooling system failures. If the lubricant viscosity decreases or the oil supply is insufficient, the oil film on the bearing bush surface can easily rupture, further accelerating the wear process.

Cracks: Fatigue Damage Poses a Threat to Equipment Safety
Under long-term cyclic loading, bearing bush materials are prone to fatigue cracks, especially in stress concentration areas such as mounting surfaces and lubricant inlets. Industry insiders note that poor lubrication, oil film rupture, or improper installation can all induce cracks, potentially triggering more severe mechanical failures. Additionally, equipment overload or localized overheating can exacerbate crack propagation, ultimately leading to bearing bush failure.

Corrosion and Rust: Chemical Erosion Reduces Service Life
Bearing bushes operating in harsh conditions are susceptible to chemical corrosion or rust, particularly in humid, highly polluted, or corrosive gas environments. Inferior lubricants, moisture intrusion, or acidic residue can accelerate the corrosion process, significantly degrading the mechanical performance of bearing bushes. In response, experts recommend using high-quality lubricants and enhancing equipment sealing and moisture-proof measures to extend the service life of bearing bushes.

Industry Call: Strengthen Maintenance and Optimize Material Selection
To address common bearing bush failures, the industry suggests that enterprises should regularly inspect lubrication systems, ensure oil quality, and optimize installation processes to avoid stress concentration. Furthermore, in corrosive environments, corrosion-resistant materials or surface treatment technologies can be considered to improve the reliability of bearing bushes. As equipment evolves toward higher efficiency and longer service life, failure prevention and technological innovation for bearing bushes will become a key focus for the industry.

In the future, by improving materials, optimizing lubrication management, and adopting intelligent monitoring methods, the failure rate of bearing bushes is expected to be further reduced, thereby enhancing the operational efficiency and economic performance of overall equipment.