我国制造和运用載重50吨及50吨以上的貨車以来,轉3、轉6型轉向架軸瓦磨耗情况十分严重,各兄弟局和工厂采取了許多措施,諸如縮小搖枕与搖枕挡之左右間隙等,均取得了一定的效果。为了探討能消除軸瓦磨耗的办法,我們綜合各兄弟局的經驗,作了如下試驗:(1)将搖枕挡的两中心距由1,956毫米改为1,946毫米;(2)軸领根部R由3.5 Since China has manufactured and used trucks weighing 50 tons and above, the wear on the bushings of Type 3 and Type 6 bogies has been very serious. Various measures have been taken by the bureaus and factories, such as narrowing the gap between bolster and bolster Etc., have achieved some results. In order to explore the ways to eliminate the wear of bearing bush, we made the following experiments based on the experience of each fraternal office: (1) Change the center distance of the bolster from 1,956 mm to 1,946 mm; (2)