Rolling bearing damage degree of judgment and proper processing technology

1, observation: rolling bearing with good lubrication and no impurities and moisture to enter, showed no wear of bearing oil seal, if after open the original bearing box, should be periodically checked visual check bearing and oil seal. Check of the condition of the near the bearing oil seal to ensure that they are enough to prevent hot liquid, corrosive liquid and gas along the axis of infiltration of bearing, oil seal, if damaged, it should be replaced as soon as possible. Check the automatic lubrication system to ensure that the oil or grease into the bearings, and to ensure that the correct amount at the same time check whether the lubricant is color or black, if has this kind of situation usually said lubricant to the impurities, this situation is the use of bearing is also harmful. 2, listening: using the hearing to identify irregular operating at a very commonly used method. If use a screwdriver or electronic stethoscope to detect abnormal noise is a compact has certain experience of the operator and maintenance personnel are often used. Bearing if good operation condition is low purring sound, such as bearing noise, sharp hissing sound, squeak, and other irregular sound, could be said bearing has been in bad state of operation. 3, touch: high temperature often said bearing is in abnormal situation, the high temperature inside the bearing lubricant is harmful, but bearing some of the time at high temperature caused by the rolling bearing in the lubricant, if bearing in the long run of more than 120 ℃ temperature will reduce the bearing life. The causes of bearing high temperature lubricant inadequate or excessive lubrication, lubricants contains impurities, heavy load, bearing damage, such as make friction clearance and oil seal. In normal circumstances, the bearing in the lubrication or there will be a natural temperature rise after the lubrication and lasts for a day or two. ( 1) 。 Check the cooling water pressure, water flow and pipeline system is normal. If water is likely to be lower filter blockage, cannot be handled in a timely manner, to stop treatment, when confirm can work, then put into use. ( 2) 。 Should be to check if the governor oil pressure, oil pressure is low can lead to cooling water hydraulic valve closed. ( 3) 。 Check for different sound, bearing and detect rolling bearing place whether there is abnormal. ( 4) 。 Take oil whether there is a change of color, sample observation and test to see whether metamorphism. If confirm the degradation new oil should be replaced downtime. ( 5) 。 Check the oil standard oil level is normal, if abnormal, check that the sump oil discharge valve is shut. If the matter, should fill oil, if is the sealant mat permeability oil, should stop processing.