A pivot bearing is a type of mechanical component that allows for rotational movement around a fixed point. It typically consists of a shaft and a bearing that supports the shaft while enabling it to turn smoothly. Pivot bearings are commonly used in various applications, including automobiles, industrial machinery, and robotics, where precise movement is essential. These bearings can be made from different materials, such as metal or plastic, depending on the specific requirements of the application. They help reduce friction and wear, ensuring that moving parts operate efficiently and have a longer lifespan. Proper maintenance of pivot bearings is crucial for optimal performance.