ANALYSIS OF BEARING FAILURE DUE TO COOLANT OIL CONTAMINATION USING DIAGNOSTIC TECHNIQUES IN GRINDING

Abstract

One of the main reasons for machining breakdowns in a given industry is bearing failure. Rolling bearings are made up of bearing rings, rolling components, and cages for the rolling components' support. The term "bearing life" refers to the total amount of revolutions (or time period) a bearing can withstand before failing. Cracks, inadequate lubrication and greasing, and insufficient bearing loading on the shaft are common failure modes. The work presented here comprises several rolling bearing damage diagnosis methods and failure scenarios.Fluid contamination is considered one of the main reasons for failure in hydraulic systems. That said, there are hydraulic systems that intentionally use water as the design fluid and there is oil in water systems for various uses. The majority use specific hydraulic fluid that is less susceptible to temperature effects and provides lubrication properties. Transmission fluid can be classified as either a hydraulic fluid or a lubricant, depending on the transmission type. Moisture is a known contaminate in a wide variety of applications, but moisture in industrial oil can be particularly damaging. In addition to impacting oil performance, water degrades additives and film strength, thus presenting the opportunity for mechanical wear and corrosion. Standard equipment features such as breathers are designed to evaporate moisture from the oil. When preventative measures fail, water content in oil can reach.