Bushings are cylindrical components used to reduce friction and wear between moving parts in machinery. They are typically made from materials like bronze, plastic, or rubber and serve as a protective barrier, allowing for smoother movement. Bushings can be found in various applications, including automobiles, industrial equipment, and electrical devices. These components are designed to fit into a housing or a shaft, providing a surface for another part to rotate or slide against. By minimizing direct contact, bushings help extend the lifespan of machinery and improve overall efficiency. They come in different sizes and shapes to accommodate various mechanical needs.