It put forward the new improvement scheme on process technology of axle suspension bush that included decrease of radius difference, increase of eccentricity of distance and increase of lubricafion contact areas.

• 重点分析了抱轴瓦的镗瓦工艺,提出了减少半径差、大偏心距,以增大润滑接触面积的新镗瓦工艺改进方案。