Picture this. Personnel from a plant are driving along a road in an automobile. The maintenance manager is driving blindfolded. Sitting beside the maintenance manager is the mill manager who is peering in the rear view mirror.

At the heart of the typical suction roll, hidden within layers of steel, lies the internal bearing. One of the most sensitive components of the roll, it is not only difficult to maintain, but also the least forgiving when it fails.

Do you know what reliability is worth in your plant?  If not, it is a good idea to figure out how much a 1% increase or decrease in reliability is worth.  Here is a couple of ideas on how to do so. 

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