As a vital component of mechanical equipment, the life of bearings is affected by many factors. First of all, the choice of materials is directly related to the wear resistance and fatigue resistance of bearings. High-quality steel or alloy materials can significantly increase the service life of bearings. In addition, the lubrication state of bearings is also a factor that cannot be ignored. Proper lubrication can not only reduce friction, but also effectively prevent damage caused by overheating. Therefore, regular inspection and replacement of lubricating oil are important measures to extend the life of bearings. Furthermore, the working environment also has a significant impact on the life of bearings. In high temperature, high humidity or dusty environments, bearings are more susceptible to erosion and damage, and users need to take corresponding protective measures. In addition, the size of the load and the operating speed will also affect the life of the bearing. Overloading or overspeeding may lead to early failure of the bearing, so the technical parameters and use specifications of the bearing should be strictly followed during design and use. In short, understanding and reasonably controlling these influencing factors can significantly extend the service life of the bearing and improve the overall operating efficiency of the equipment.