What is the primary purpose of lubricants in machinery?

The primary purpose of lubricants in machinery centers around the reduction of wear. Lubricants create a film between moving parts, which minimizes direct contact and allows for smooth operation. This film reduces friction, which can cause wear over time, leading to mechanical failure. Moreover, by lowering friction, lubricants help in dissipating heat generated during operation, further contributing to the longevity and efficiency of machinery. Although preventing corrosion is an important function of some lubricants, their main role is effectively to reduce the wear of components, ensuring that they operate quietly and efficiently over time.