In this paper,the wear comparision tests between the TB tapered treads and the LM type treads used on 260 torpedo form iron mixing car wheels are introduced,and it is proved that the use of LM type treads provides appreciable economic benefits.

• 介绍了对260t鱼雷形混铁车车轮使用TB锥形踏面与LM型踏面进行的磨耗对比试验，证明使用LM型踏面有明显经济效益