研究了天然橡胶、丁苯橡胶和丁腈橡胶在线接触条件下磨损过程中磨损率的变化规律，发现橡胶材料在磨损初期的磨损率随摩擦行程增大而增大，到达一定阶段后磨损率保持不变，进入稳定磨损阶段。本文还应用能量磨损理论对实验结果作了理论分析。 The changes of wear rate of natural rubber, styrene butadiene rubber and nitrile rubber under the condition of on-line contact were studied. It was found that the wear rate of rubber material increased with the increase of frictional stroke at the initial stage of wear, and the wear rate remained at a certain stage Unchanged, into a stable wear stage. In this paper, the theory of energy wear is also used to analyze the experimental results.