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Troubleshooting of INA Cylindrical Roller Bearings in Operation

by:JNSN     2022-10-02
(1) Scar sound and its control method If there are cracks, indentations or rust on the rolling surface of the ina bearing, periodic vibration and noise like riveting rivets will occur. The cycle can be fixed but most of them are inevitable with the rotation speed Correspondingly, the scars will continue to occur on the channel, and the scars will appear and disappear on the steel ball, and this noise will inevitably change with the installation and smooth conditions. The control measures for this kind of noise are: do not knock the bearing during installation, avoid bearing tilting when assembling the cylindrical roller bearing with the shaft and then put it into the bearing seat; avoid bearing corrosion during storage and avoid shock vibration during transportation; use viscosity High gloss. (2) Dust sound and its control method There are foreign objects such as dust in the ina bearing, which will produce non-periodic vibration and so-called dust sound. The control methods of dust noise include: improve the cleaning method of the bearing, thoroughly clean the cylindrical roller bearing, shaft, seat hole and matching parts before installation; remove foreign matter in the lubricant; improve the sealing of the ina bearing; prevent the use of materials Impure or embedded plastic cages. (3) Noise caused by lubricating elements and its countermeasures The wrong choice of lubricant, lack of lubricant or aging induration can cause vibration and noise in cylindrical roller bearings, and there is no certain rule for such noise. In this case, as long as the appropriate lubricant is selected, the lubricant dosage is adjusted, the service life of the lubricant is extended, and the replacement cycle is reasonably determined. The vibration of the bearing has an obvious effect on the failure of the ina bearing. For example: spalling, indentation, corrosion, cracks, wear, etc. will be reflected in the bearing vibration detection, so by using a special rolling bearing vibration measurement device (frequency analyzer and vibration meter) etc.) can measure the magnitude of the vibration, and the specific situation of abnormal vibration can be inferred from the frequency distribution. The measured value is different due to the use conditions of the cylindrical roller bearing or the installation position of the sensor, so it is necessary to measure each machine in advance. Values ​​are analyzed and compared to determine the criterion. Usually, the temperature of the ina bearing gradually increases with the start of operation, and reaches a stable state after 1 to 2 hours. The normal temperature of the bearing varies due to the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation are not suitable, the cylinder The temperature of the roller bearing will rise sharply, and abnormally high temperature will occur. At this time, it is necessary to stop and take necessary preventive measures.
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