What effect does inadequate lubrication have on bearing performance?

• A. Decreased load capacity
• B. Improved efficiency
• C. Increased lifespan
• D. Noise reduction

Answer: (A)

Inadequate lubrication in bearings can significantly decrease their load capacity. Proper lubrication forms a protective film between the moving parts of the bearing, reducing friction and wear. When lubrication is insufficient, the metal surfaces can come into direct contact, leading to increased friction and elevated temperatures. This situation can cause the bearing to deform, fail prematurely, or experience shear forces that exceed its design limits, ultimately reducing its ability to support loads effectively.

Without the necessary lubrication, components may also suffer from corrosion or pitting, further compromising the bearing's integrity and its capacity to carry loads. This highlights the crucial role that proper lubrication plays in maintaining not just the efficiency but also the functional lifespan of the bearing under operational conditions.