I would think that the press in a band saw is quite light, and if any heat is required, it will be minimal if lube is used for assembly. I am speaking from experience.

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Also, I will agree that a lot of bearing failures are the direct result of poor or incorrect installation. No doubt about that, and I have seen it often.

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However, they do fail because they wear out. I have seen many, and in applications where their life was predictable, and either they were changed at specific operating hours, those hours being formulated on past failures, or the particular bearing(s) used, were changed to an different model for the application. I have worked plenty with bearing nerds from Timken, SKF, and others to get that done.

Bearing life is a matter of loads, speeds, environment, housing/shaft fits, and lubrication, as well as installation procedures.

A lot of failures that I saw, were the direct result of engineers missing one of the above, or a piece of equipment was being used in a manner for which it was not actually designed.

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Bill

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