Extraction of water damage of bearing

Extraction of water bearing damage - 2018 09 - 13 see topic may be a lot of people will come up with, bearing is working in the oil, how can have water damage to the bearing? Actually lubricating oil in water easily, the inside of the lubricating oil vapor has great damage. There are two sides to this damage. First of all, if the water comes into contact with the bearing surface, will directly cause bearing corrosion, corrosion rusty bearings use effect will be decreased a lot. Bearing corrosion process for: after water decomposition form hydrogen and oxygen, oxygen react with bearing not only, also occur chemical reaction, hydrogen form the hydrogen embrittlement phenomenon often said. Second, the water vapor into the lubricating oil, can cause the deterioration and degradation of the lubricating oil, make its loss of lubrication performance, cause long-term damage to bearings and other parts. These types are: additives consumption, reduce liquidity, bubbles, destroy the oil film strength, microbial contamination, dilution, Lipid) And so on. The water vapor content in the lubricating oil has a very large effect on the service life of bearing, we take the water content of 100 PPM of bearing life for 100 as a reference, when the water content of 400 PPM, bearing life will shorten 50%, if we control the moisture content of 25 PPM, 2 bearing life will improve. 5 times. So to prevent the lubricating oil vapor pollution is one of the important means to improve the service life of the bearing. The vapor in the lubricating oil is derived from the moist air. Due to the effect of heat bilges cold shrink, we can't be all lubricating oil seal, must design the necessary mouth breathing, it provides convenience for water vapor to enter. A simple method is set up in mouth breathing a respirator, built-in desiccant, make convenient in and out of the air, water filtration. As long as the regular of desiccant drying process can ensure no pollution to oil. To ensure the service life of bearing.