转8A型转向架仅靠摇枕与侧架间的斜楔联系,靠斜楔的2个摩擦面定位,所以正位能力较差。在运行中,侧架与摇枕的各主要磨耗面磨耗极不均匀,恶化了转向架的动力性能,容易导致轴瓦端磨、轴瓦白合金前后裂等情形,从而产生热轴、燃轴等惯性事故,同时,也加大了转向架的检修修程,减... Zhuan 8A bogie only by the bolster and side wedge contact between the wedge, by wedge 2 friction surface positioning, so the positive position is poor. In operation, the main wear side frame and bolster wear very uneven wear and tear, deteriorating the dynamic performance of the bogie, easy to end bearing pad mill, front and rear bearing shell white metal splitting and so on, resulting in thermal axis, combustion axis inertia Accident, at the same time, but also increased maintenance of the bogie repair, minus ...