The Research of Rotation Frequency Influence and Technical State Condition Upon the Level of Vibration Spectrum Components of Rolling Bearings

The aim of this paper is to carry out the research of rotation frequency influence and technical state condition of rolling element bearings upon the level of vibration spectrum components which corresponds to the frequencies of rolling element bearing failure exposures. The research was being carried out on the basis of experimental planning by means of experimental board enabling to assign frequency and to record vibration signal. Different types of bearings have been subjected to the experiment. Those were: regular rolling element bearings as well as rolling element bearings having artificiality created failures and the bearings with failures which have been received during long-term utilization. The results obtained show the availability of direct dependence between the level of spectrum components which corresponds to the frequencies of rolling element bearing failure exposures and rotation frequency. It should be noted that the responsiveness of the given dependence is directly connected with the technical state of the rolling element bearing being investigated.These results were taken into account while comprising mathematical models of rolling element bearings vibration used in automatic expert diagnostic system series.