针对本钢 1 70 0 mm热连轧机组工作辊轴承频繁烧损 ,困扰生产多年的的恶性故障 ;提出了以轴承运行状态在线监测及相关因素核查的研究方法 ,查明了因辊对交叉轧制而产生的过大轴向力及偏载力矩 ,是造成工作辊轴承严重烧损的主要原因。通过积极治理 ,烧损率下降了 80 % ,取得了良好的成效 In view of the frequent burning of the work roll bearings of the 1 70 0 mm hot strip mill in Benxi Iron and Steel, plaguing the production of many years of malignant faults; the paper put forward a research method of on-line monitoring of bearings running status and related factors verification, Produced by excessive axial force and partial load torque, is the main cause of the work roll bearing a serious burn. Through active management, burning rate has dropped by 80%, and achieved good results