Annular bearings are mechanical components designed to support rotating shafts while allowing smooth movement. They consist of a ring-shaped structure that encircles the shaft, providing a surface for it to rotate against. This design helps reduce friction and wear, enhancing the efficiency and lifespan of machinery. These bearings are commonly used in various applications, including automotive engines, industrial machinery, and aerospace systems. Their ability to handle radial loads makes them suitable for high-speed operations, ensuring reliable performance in demanding environments. Proper lubrication is essential for optimal function and longevity of annular bearings.