Bearings are mechanical elements that facilitate smooth and efficient movement between stationary and rotating components. They are designed to reduce friction, support loads, and enhance the performance and longevity of machinery. Bearings come in various types, including ball bearings, roller bearings, and plain bearings, each suited for different applications and load capacities. Commonly found in automotive, aerospace, industrial, and household equipment, bearings play a vital role in ensuring the reliable operation of everything from electric motors and turbines to conveyor belts and computer hard drives.