A new technique for detecting bearing defects in service, a high frequency acoustic emission (HF-AE) method, could prove a practical way of warning of impending bearing failure on plant. Maintenance costs during the lifetime of machine installations on plants are very high, often 50 to 200% of the invested value. Not surprisingly, increasing attention is being given to ways of reducing these costs and the associated loss of production while a machine is standing
idle.
One way of reducing costs is to install effective condition monitoring equipment able to predict failures and so allow planned maintenance, avoiding expensive emergency shutdowns. In this respect, a new monitoring technique developed at SKF’s Engineering and Research Centre (ERC) could prove a valuable tool for the maintenance engineer.
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