The lifespan of aircraft bearings plays a crucial role in ensuring the safe and efficient operation of aviation systems. From engines to landing gear, bearings are essential components that support the rotational movement of various mechanical parts while mitigating friction. To maximize performance and longevity, proper bearing maintenance and lubrication practices are essential. In this article, we will delve into the world of aircraft bearings, explore the bearing life cycle, and discuss the importance of bearing lubrication.