The hydraulic breaker, widely employed in mining, construction, and road construction, owes its efficient crushing capability to the harmonious interplay and upkeep of various critical components. Among these, the inner and outer bushings stand out as the cornerstone components, profoundly influencing its performance and longevity. This article elaborates on the functions, materials, and maintenance of the hydraulic breaker’s inner and outer bushings.

Primarily, the inner bushing, an essential internal component, facilitates the movement of the piston, ensuring its stability during high-frequency impacts. Typically crafted from high-strength alloy steel, the inner bushing undergoes meticulous machining and heat treatment to confer excellent wear resistance and impact resilience. A high-quality inner bushing not only reduces piston friction and wear but also extends the overall lifespan of the hydraulic breaker.

The outer bushing, complementing the inner counterpart, acts as the protective shell of the hydraulic breaker’s exterior, enduring external impacts and safeguarding internal components. Fabricated from high-strength steel, the outer bushing boasts commendable wear resistance and impact resilience. The design and manufacturing precision of the outer bushing significantly influence the hydraulic breaker’s overall performance. A superior-quality outer bushing effectively disperses impact forces, minimizing damage to internal structures, thereby enhancing equipment reliability and durability.