马钢高速线材轧机的减定径机变速箱是2003年从德国西马克引进的,由于设计缺陷,其档位齿轮内轴承使用1个月后,滚动体和滚道就产生塑性压痕,寿命仅为半年。通过改造,大幅提高了轴承的承载能力,改善了轴承的定位方式,取得了良好的效果。 The reduction gear reducer of Masteel’s high speed wire rod rolling mill was introduced from SMS Siemag in 2003. Due to the design flaws, the rolling bearing and raceway produce plastic indentation after one month’s use of gear bearings. Only six months. Through the transformation, a substantial increase in the bearing capacity, improved positioning of the bearing, and achieved good results.