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timken轴承的滚道声及其控制方法滚道声是当外球面轴承运转时，其滚动体在滚道面上滚动而发出的一种滑溜连续的声音，是所有轴承都会发生的特有的基本声。一般的轴承声即是滚道声加上其他声音。球轴承的滚道声是不规则的，频率在1Hz以上，它的主频率不随转速而变化，但其声压级随转速的加快而增加。滚道声大的轴承，其滚道声的声压级随粘度的增加而减少；而滚道声小的timken轴承，其声压级在粘度增大至约2mm2/s以上时，由减少而转为有所增大。
