What are the methods to determine the characteristics of the rolling bearing friction torque

1. Rolling bearing the basic characteristics of the evaluation method the basic characteristics of rolling bearing with sensitive coefficient A and stability coefficient S performance, to reflect. 一个。 The smaller numerical said bearing the better the performance of sensitive: S the better the performance of the smaller the numerical stability of said bearing 4 big S value sensitive little said bearing performance is poor but stable performance; A value small s, said big sensitive bearing performance is good but the performance is not stable; 4, and s, values are big said bearing performance and poor performance is not stable. Obviously, the two comprehensive reflects the sensitive bearing friction torque performance and stable performance, which laid a foundation for preliminary analysis bearing friction torque. 2. Rolling bearing temporal characteristics of the evaluation method in rolling bearing temporal characteristics of the assessment, the significance level is a measure of the level of rolling bearing friction torque state parameter, the smaller the numerical description is the result of the difference, the greater the numerical result shows that the greater the comparisons difference is smaller. - - - - - - Miraculously, the significance level of a value of 0. And 0 01. 05. The confidence level required for general equipment, the friction moment is 95%; For important equipment, the friction torque is 99% ~ 100% confidence level requirements. Z indicates that the set of bearing friction torque is greater than the number of other bearing friction torque, the greater the value shows that the set of bearing compared with other bearings, bearing lubrication and operating flexibility, the worse. C is the specific significance level in the sample space under a standard value, said a basic value, stated as some numerical value is greater than the difference of the level to some degree. The method integrated two sets of bearing friction torque overall judgment temporal characteristics of bearing friction torque, can avoid the influence of the data in individual larger or smaller, can reflect the status of rolling bearing friction torque specific contrast, and characterization of the temporal characteristics of rolling bearing friction torque. 3. Rolling bearing status features evaluation method of rolling bearing condition evaluation is adopt the method of rank and evaluation. The method can effectively solve the numerical sequence on the effect of rolling bearing friction torque. Rank and R ( X) The greater the numerical, which indicates that this set of bearing friction torque order more, the worse its state characteristics, namely the bearing friction performance is bad. Finally summarize the results of the three approaches to the comprehensive judgment of rolling bearing friction torque characteristics, from a few sets of rolling bearing performance optimal bearing is selected.