The main causes to wear of the positioning navels for bolster springs in Zhuan K6 bogies mounted on C80 gondola cars are analyzed comprehensively from dynamics and operation conditions.

• 从动力学及运用状况综合分析了C80型敞车装用的转K6型转向架的摇枕弹簧定位圆脐磨耗的主要原因,并提出了一些相关建议。