Apply a little smoothing agent to rub between the two fingers. If there is any contaminant, it can be felt; or apply a thin layer of smoothing agent on the back of the hand, then stop the sealing inspection.
If you have a bad condition, be sure to change it. A bad oil seal will cause damage to the bearing, causing the bearing cloud to be abnormal and forming a machine shutdown. Therefore, before we stop the inspection of the bearing, we should lead the appearance of the clean bearing and then disassemble the parts around the bearing. It is important to note that the oil seal is a very fragile part, so you need to be extra careful when checking and disassembling. Do not apply excessive force to avoid damage to the parts.
Then carefully check the oil seal of the bearing and its surrounding parts. Secondly, we also check the smoothing agent of the bearing.
1. Bearing maintenance: In order to maintain the original performance of the bearing in a good state for as long as possible, it is necessary to support, repair, and prevent accidents, ensure the reliability of operation, and improve consumption and economy. The operating standards for the corresponding mechanical operating conditions are regularly suspended. The content includes monitoring of operating conditions, replenishment or replacement of lubricants, and periodic disassembly inspections. The maintenance items in operation include the rotation sound of the bearing, vibration, temperature, and the state of the lubricant.
2. Inspection of the bearing: Cleaning of the bearing: When disassembling the bearing for repair, first record the appearance of the bearing, confirm the residual amount of the lubricant, and after washing the lubricant for sampling and inspection, wash the bearing. As a cleaning agent, gasoline and kerosene are commonly used. The cleaning of the removed bearings is divided into coarse cleaning and fine cleaning. They are placed in the container respectively, and the metal mesh bottom is placed first so that the bearing does not directly contact the container. In the case of rough cleaning, it is assumed that the bearing is rotated with dirt, which will damage the rolling surface of the bearing and should be noted. In the rough cleaning oil, use a brush to remove the grease and adhesive, and after roughly cleaning, transfer to the fine wash. Fine washing is to carefully clean the bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
3, bearing repair and discriminating: In order to determine whether the removed bearing can be used, it should be checked after the bearing is cleaned. Check the condition of the raceway surface, the rolling surface, the mating surface, the wear of the bracket, the increase of the bearing clearance, and the damage and abnormality caused by irrelevant dimensional accuracy. For non-respective small ball bearings, use one hand to support the inner ring and rotate the outer ring to check if it is fluent.
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