FEM Analysis Of The Four-Row Tapered Roller Bearing Of Vertical Miller

The rolling mill bearings are one of the important components of the metallurgical equipment. Not only the work environment of the rolling mill bearings is very tough, but also it must meet the challenge of over loading, high speed and heavy impact load. Therefore, it is significant for entire metallurgical production to ensure the normal work and life of the mill bearing.The neck bearing of cantilever edger mill in one plant mill factory is four-row tapered roller bearing, which was failed several times in the normal production. This resulted in the entire production line shutdown and huge losses. Based on the field test, this paper establishes the finite element model of the four-row tapered roller bearing system, and through the heat-structure coupling analysis, the impact of temperature on the four-row tapered roller bearing and the stress distribution of the roller and cage are represented.The optimal design of crown roller is an important method to improve the carrying capacity and service life of roller bearing. For the tapered roller is crushed in the accident, the crown design in the form of Logarithm bus-bar of the tapered roller is taken in this paper with the technology of sub-model, to improve the stress distribution of the roller.The strength of the cage is one of the important factors that impact the functional mode of the bearing. In the condition of heavy and large impact load, the cage will deform and bear pulsating stress. The improvement design is taken in this paper, which improves the strength of cage and ensures the normal running.