BUMA high chromium-molybdenum steel pins are matched with self-lubricating composite bushings to reduce swing friction losses; preloaded bearings and hardened sleeves accurately constrain radial clearances. The triple anti-wear structure resists sand erosion and impact deformation, significantly extending the life of the boom, chassis, and slewing mechanism, ensuring that the equipment joints remain stable and smooth for ten years.
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The following are common frequently asked questions (FAQ) about bumaparts machine, along with their brief answers.