What can result from the loss of bearing metal?

The loss of bearing metal primarily leads to corrosion or metal fatigue because bearings are designed to provide a smooth surface for rotating shafts, reducing wear and tear. When the metal of the bearing degrades due to wear, corrosion, or fatigue, it can lead to a breakdown of the bearing structure. This deterioration can significantly affect the integrity and longevity of the bearing, ultimately causing inefficiencies in equipment and potential failures.

Corrosion occurs when moisture or contaminants interact with the metal surface, leading to rust and deterioration. Metal fatigue, on the other hand, refers to the weakening of the metal due to repeated stress or strain, which can eventually result in cracks or fractures. Both of these conditions are direct consequences of losing bearing metal, affecting the performance and reliability of machinery.

Increased friction and overheating often result from other contributing factors or conditions rather than directly from the loss of bearing metal. Contamination may also be a consequence but is not the direct result of bearing metal loss itself. Therefore, when focusing on the most accurate outcome specifically tied to the loss of bearing metal, corrosion or metal fatigue stands out as the correct answer.