1977年美国铁路代表团访问苏联,与苏联的铁路技术人员讨论了新型弹性滚柱轴承承载鞍衬垫在苏联铁路上的试用情况。弹性体衬垫厚度从1/4到1英寸,盖在圆柱形轴承座圈的上半部,承载鞍装在衬垫的上面。该衬垫减少了疲劳引起的滚柱轴承事故。美国铁路代表团的代表们检查了行驶150000英里的衬垫,没有发现磨耗或变形的情况。到1977年为止,试用情况表明衬垫可以延长滚柱 In 1977, a U.S. railway delegation visited the Soviet Union and discussed with the Soviet railway technicians about the trial use of the new elastic roller bearing saddle liner on the Soviet railway. Elastomer liner thickness from 1/4 to 1 inch, covered in the upper half of the cylindrical bearing race, bearing saddle mounted on the pad above. The pad reduces fatigue-induced roller bearing accidents. Representatives of the U.S. railroad delegation examined 150,000 miles of liner and found no wear or deformation. As of 1977, the trial shows that the liner can extend the roller