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Lube tip: thermal failure in lubricants

Lubricants can thermally degrade for quite a lot of causes and causes. In contrast to oxidation, thermal failure can happen in new lubricants with wholesome additive packages. Nevertheless, lots of the signs of oxidation are additionally signs of thermal degradation.

Some of the frequent causes of thermal failure in hydraulic fluids and a few lubricating oils pertains to aeration, i.e. entrained air bubbles. These bubbles can turn out to be quickly compressed in hydraulic pumps and within the squeeze zones of bearings. This ends in excessive localized temperatures. Scorching floor carbonization is one other type of thermal failure. When an oil thermally degrades, issues related to sludge, varnish, deposits, viscosity change and additive decomposition will typically happen. Go to for extra situation monitoring data.