二十辊轧机的背衬轴承使用工况和普通轴承存在很大差异,所以对其性能和精度都有较高的要求,同时其在使用中的损坏形式也有其特殊性。本文介绍了某钢的二十辊轧机背衬轴承的几种主要的损坏形式并提出了应对措施。 Twenty-high rolling mill bearing conditions and the use of ordinary bearing there is a big difference, so its performance and precision have higher requirements, while its use in the form of damage has its own particularity. This paper introduces the main damage forms of the backing roller bearing of the twenty-high mill of a steel and presents the countermeasures.