Recommended initial alarm criteria for bearing condition assessment

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Published date:
Publication ID: CM3068
Author: Jim Wei
Format: PDF
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Recommended initial alarm criteria for bearing condition assessment

This application note presents a set of guidelines for initially establishing Alert and Danger alarm thresholds for enveloped acceleration measurements for early detection of rolling element bearing damage. The criteria recommended herein should be used to determine initial alarm thresholds only. As with all commonly published severity charts and tables, this method provides target thresholds for new, refurbished, and recently maintained equipment. Once a good operating baseline is established, and sufficient data and experience have been acquired for high confidence statistical alarm calculation on a point-by-point basis, the prudent analyst will abandon these guideline thresholds in favor of an automatically calculated trend-based or statistically-based change technique.

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