The lifespan of ceramic bearings depends on multiple factors, including working conditions, load, speed, lubrication method, etc. Generally speaking, ceramic bearings have a long service life, and the following are some common life characteristics:1. High hardness and wear resistance: Ceramic materials typically have very high hardness, making them less prone to wear. In contrast, metal bearings are prone to wear under high load and high-speed operating conditions, while ceramic bearings may have a longer lifespan under the same conditions.2. Low friction and thermal expansion: Ceramic bearings have lower friction and thermal expansion coefficients, which means that less friction and heat are generated during operation. In contrast, metal bearings are prone to generate frictional heat in high-speed and high-temperature environments, which affects bearing performance and lifespan.3. Corrosion resistance: Ceramic materials usually have good corrosion resistance and can resist corrosion by chemicals, acids, alkalis, and oxidation. This enables ceramic bearings to cope with some corrosive environments and improve their service life.4. Self lubrication: Due to the smooth surface of ceramic materials, they have self-lubricating properties and do not require excessive lubricants. This reduces the possibility of bearings being in a dry friction state and reduces the damage of lubricants to ceramic bearings.It should be noted that although ceramic bearings have many advantages, they are not completely fault free and have an infinite lifespan. The actual lifespan is also influenced by other factors, such as assembly quality, maintenance, and external environment. Therefore, in practical applications, reasonable selection and use should be made based on specific working conditions and requirements, and regular maintenance and inspection should be carried out to ensure the performance and lifespan of bearings.
