When one or more of balls or rollers have defects, the defect impacts both the inner and outer race each time one revolution of the rolling-element is made. Therefore detection frequency is 2xBSF rather than 1x.
原帖由 zjplay 于 2010-6-18 21:59 发表
When one or more of balls or rollers have defects, the defect impacts both the inner and outer race each time one revolution of the rolling-element is made. Therefore detection frequency is 2xBSF rath ...