Detect FAG bearing is damage or failure judgment method

Generally, if the correct use of FAG bearings, can be used to achieve fatigue life. But there will be unexpected injury prematurely, no ability to use. This early damage, and fatigue life, it is called the fault or the quality of the accident to use limit. Much due to the installation, use, do not pay attention on the lubrication, intrusion of foreign bodies from outside, to the shaft, shell heat affected study enough. About FAG bearing damage status, such as: roller bearing ring, guard card injury, as a reason to consider, lack of lubricant, not suitable for, for the defect of oil discharge structure, the invasion of the foreign body, bearing installation error, the deflection of the shaft is too large, also can have these reasons. Therefore, only investigate bearing damage, the real reason is hard to come by injury. But, if you know the use of bearing mechanical and conditions of use, bearing the surrounding structure, understand before and after the accident, combined with several damage status and causes of bearing, can prevent the similar accident happen again. The thesis& oil drops after stir in white paper ( It's best to filter paper) , form the oil stain, staining outward from the center after about 2 ~ 3 hours of gradually spread, form three concentric rings. According to the color of the three regions, size and shape can identify the state of the oil. From the lower shell oil with a little oil, besmear is on the fingers, fingers and thumb twist mill. If you have any impurity or feel oil like water without a sticky feeling, even send acerbity or have a sour taste, oil has been bad. If twist after grinding on the finger to see small shiny metal grinding, the serious wear and tear parts, engine are also shows that the oil must be replaced immediately. FAG import bearings or component due to the force change size or shape is called deformation. The scene of the production machinery and equipment because of the bad working conditions, are often overloaded operations, some outer spherical bearing deformation is very common. Their deformation will lead to accelerated wear and other related parts and even rupture, and may lead to system series bearing damage or damage to the device, caused the accident, so the harm of deformation is quite serious. At full load and overload of machinery and equipment for a long time, the temporary load rate already exceeds the provisions of the factory design index, lead to FAG bearing deformation. Steel rolling workshop finished products across the bridge crane, for example, temporary load rates tend to be more than 70%, part bridge girder downwarping bend, and lead to deformation of car body and the four wheels running, screeched friction scream.