机器噪声常常可追溯到滚动轴承座环的缺陷上去。确定轴承是否在发生讨厌的振动的一个方法,是计算其可能的输出频率,并将它们与测得的系统的频率相比较。每转噪声脉冲数通常等于座环滚道缺陷数乘以滚动元件数N_b,但是,发射脉冲的实际数目会比这个乘积低的多,它产生通常不期望的噪声频率。考虑到滚动元件列在缺 Machine noise can often be traced back to the defects of the rolling bearing rings. One way to determine if bearings are annoying vibrations is to calculate their possible output frequencies and compare them to the measured system frequency. The number of noise pulses per revolution is usually equal to the number of seat ring raceways multiplied by the number of rolling elements, N_b, but the actual number of transmit pulses will be much lower than this product, which produces a generally undesirable noise frequency. Taking into account the rolling elements listed in the missing