挖掘机、推土机等履带式工程机械上的支重轮由于承载负荷大、工况恶劣,经常出现漏油现象。支重轮漏油后不久,便会加剧磨损,直至不能继续使用。绝大部分支重轮漏油是从浮动油封处渗出的,本文针对小型挖掘机支重轮浮动油封漏油的原因进行分析,并提出解决方案。 Excavators, bulldozers and other crawler track rollers on construction machinery due to the bearing load, poor working conditions, often the phenomenon of oil spills. Shortly after the oil drum leaks, wear and tear will aggravate until it can not continue to be used. The vast majority of roller leakage is leaking from the floating seal, this paper analyzes the reasons for the oil leakage of the roller bearing of small excavator and puts forward the solution.