Which of the following is a common problem with lubricant degradation?

Lubricant degradation is a significant concern in machinery maintenance, as it can lead to reduced performance, increased wear, and potential equipment failure. Acknowledging that all of the factors listed contribute to lubricant degradation highlights the multifaceted nature of this issue.

Overheating can accelerate the breakdown of lubricant molecules, resulting in a loss of viscosity and the formation of harmful byproducts. Excessive heat can also lead to oxidation, which further deteriorates the lubricant's protective qualities.

Under lubrication means that there is insufficient lubricant in the system, causing metal components to come into direct contact with each other. This lack of adequate lubrication increases friction and can quickly lead to wear and overheating, both of which compromise the lubricant's effectiveness and lifespan.

Air contamination involves the introduction of air into the lubricant system, which can lead to oxidation and the formation of sludge or varnish. This contamination can negatively affect the lubricant's stability and protective properties, accelerating degradation.

Recognizing that all these factors contribute to lubricant degradation helps in forming a comprehensive approach to maintaining optimal lubrication conditions in machinery, ensuring the longevity and performance of equipment.