SKF bearing clean undeserved cause burns

The cleanliness test is through certain methods to isolate the impurity in the rolling bearing and determination of the pollution degree of testing methods, the purity of the current detection method has the following three: quality standard test, microscopic counting method, automatic test particle counting method. A: the quality standard test. According to the regulations of the state of JB/T ⒛ 50 - 2005 related standard, the impurities in the rolling bearing to the cleaning fluid, cleaning after cleaning fluid filtration, drying, weighing, calculate the quality of the impurity particles. Experiment 2: microscope method. Previous step of this method and quality standard, the different cleaning fluid is filtered, directly with a microscope observation of impurity particles in the membrane filter size and quantity. And still can according to the shape of impurity, determine the chemical composition and content of impurities. The method most suitable for the determination of SKF bearing precision bearing cleanliness. 3: automatic particle counting method test. Automatic particle calculation method and quality standard, microscope method is different, it is using the theory of photoelectric principle, direct method determining the quantity of impurity particles and size. The precision of this method is higher, usually applies to rolling bearings of high cleanliness requirements. Bearing appeared burns burn injury (so-called SKF bearing status refers to: the bearing raceway wheel, roller and cage in the rotation sharply fever until discoloration, softening, deposition and damaged. The main cause of bearing burn is due to bad lubrication of rolling bearing, may use the informal lubricant, or lubricant too much, too little, is not correct. It is possible that too much load ( Preloading is too big) 。 Speed is too large. Clearance is too small. With water or other foreign matter invasion. If the above two cases are not the shaft, the accuracy of bearing box, shaft deflection. See here, I think everyone wants to know the solution, first of all, to study lubricants and lubrication method, choose the right rolling bearing lubricant, and its dosage, and choice of SKF bearing must be corrected. Study to cooperate, bearing clearance, and preloading, and improve the sealing device. Check the shaft and the precision of the bearing housing.