lubrication theory

Lubrication theory studies how thin layers of fluid, called lubricants, reduce friction and wear between moving surfaces. It explains how these fluids flow and create a supporting pressure that prevents direct contact, allowing parts to move smoothly and efficiently. This theory involves understanding the behavior of the fluid under various conditions, accounting for viscosity (fluid resistance), surface geometry, and motion. It is fundamental in designing machinery like engines, gears, and bearings, ensuring reliable operation by minimizing friction, heat, and wear through proper lubrication mechanisms.