The stable operation of the mill reducer is an important prerequisite to ensure that the rolling is carried out normally.Through the combination of theory and practice,for the phenomenon of bearing damage of high-speed shaft parts of horizontal speed reducer in the rolling area of bar line,we analyze the mechanism of bearing damage from the aspect of equipment and process,so as to improve and optimize it by adopting effective transformation plan.Through an in-depth study of the reducer,two options for replacing the bearings of the high-speed shaft components were formulated:one is to replace the SKF23230CC/W33 bearings with NSK23230CAME4S11 bearings;and the other is to replace the SKF23230CC/W33 bearings with FAG's F-674572.23130 bearings.The results show that:through the replacement of high-speed shaft components of the bearing,completely eliminated the reducer equipment operation hidden danger,effectively reducing the equipment failure rate,for the metallurgical industry reducer fault handling to provide reference to learn from experience.
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