Which is better for the excavator size arm bushing?

    The bushings used by the excavator's large and small arms are generally steel sleeves and copper sleeve products. The bushings purchased by the major excavator mainframes are basically not produced by themselves, and are purchased out. At present, there are many small factories in China that can produce such products, but the quality is uneven. Of course, it is good to buy the accessories produced by the main factory, but most of the repairers and traders can't find them. The profit of accessories is generally high). The process and dimensions of the bushing parts of each excavator main engine are different. Some need eight-slot oil groove steel sleeves, some are net-shaped steel sleeves, and some are oil-hole steel sleeves or graphite-embedded copper sleeves, etc., repairers and distributors. If there is a certain amount, then when we can't find the main factory, it is right to find us.