👉 A wear fluid, also known as lubricant or lubricating fluid, is a substance applied to surfaces in contact to reduce friction and wear during mechanical operations. It forms a protective layer between moving parts, minimizing direct metal-to-metal contact and thus preventing the degradation of materials over time. Wear fluids can be liquids, oils, greases, or even specialized pastes, and they are crucial in various applications such as machinery, automotive engines, and industrial equipment. By reducing friction, wear fluids help improve efficiency, extend the lifespan of components, and decrease energy consumption. They also help dissipate heat generated by friction, further protecting the machinery from thermal damage.