When disassembling the bearing for inspection, first record the appearance of the skf cylindrical roller bearing, confirm the residual amount of lubricant, and wash the bearing after sampling the lubricant for inspection. As the cleaning agent, gasoline and kerosene are generally used. The cleaning of the dismantled bearing is divided into coarse cleaning and fine cleaning. They are respectively placed in the container, and a metal mesh pad is placed at the bottom first, so that the bearing does not directly contact the dirt of the container. During rough cleaning, if the bearing is rotated with dirt, it will damage the dynamic surface of the skf cylindrical roller bearing, so you should pay attention. In the rough cleaning oil, use a brush to remove grease and adhesions. After it is roughly clean, transfer to the fine cleaning. Fine cleaning is to carefully clean the bearing while rotating in the cleaning oil. In addition, the cleaning oil should always be kept clean. 2. Inspection and judgment of skf cylindrical roller bearings In order to determine whether the disassembled skf cylindrical roller bearings can be reused, it is necessary to inspect the skf cylindrical roller bearings after cleaning them, and carefully check the raceway surface, dynamic elastic surface and mating surface. Condition, wear of the cage, increase in bearing clearance, and damage or abnormality related to the drop in dimensional accuracy. For non-separable small ball bearings, use one hand to support the inner ring horizontally, and rotate the outer ring to check whether it is smooth. Separable skf cylindrical roller bearings such as tapered roller bearings can be inspected separately for the moving body and the raceway surface of the outer ring. Because large bearings cannot be rotated by hand, pay attention to check the appearance of the moving body, raceway, cage, rib surface, etc. The higher the importance of the bearing, the more careful inspection is required. The judgment of reusability is determined by considering the degree of damage, mechanical function, importance, operating conditions, and the period until the next inspection. However, if there are any of the following defects, it can no longer be used, and a new bearing must be replaced: (a) any one of the inner ring, outer ring, moving body, and cage has cracks or gaps; (b) any ring, moving body, etc. One is broken; (c) there is obvious jamming on the raceway surface, rib, and moving body; (d) the cage is obviously worn, or the rivet is obviously loosened; (e) there is rust on the raceway surface, the moving body, Injury; (f) Severe indentations and marks on the raceway surface and moving body; (g) Significant creep on the inner diameter surface of the inner ring or the outer diameter surface of the outer ring; (h) Discoloration caused by heat Significant; (i) The skf cylindrical roller bearing sealed with grease, the seal ring or the dust cover is significantly damaged.
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