水轮发电机组的推力轴承的传统结构是采用动压推力轴承,但在频繁启动和停机工况下,动压轴承磨损严重,烧瓦事故时有发生,改用动静压推力轴承后,实机使用证明效果满意,文中介绍了该轴承的工作原理以及在发电机组中的应用,举例说明了实机应用的情况和改进前后的效益对比. The traditional structure of the thrust bearing of hydroelectric generating set adopts the dynamic pressure thrust bearing, but under the condition of frequent start-up and shut-down, the dynamic pressure bearing is worn seriously and occurs during the burning accident. The use of proof of satisfactory results, the article describes the working principle of the bearing and the application in the generator set, an example of real machine applications and improve the efficiency of comparison before and after.