When we use bearings and find that their temperature is very high, we should stop the equipment immediately, identify the cause, and follow the solutions provided above for handling. However, the solution may vary depending on the cause of bearing heating, so it is necessary to treat the situation specifically and complete it with the help of technical personnel.
1. To check the temperature of the bearing during rotation, it is more appropriate to use oil holes to directly measure the temperature of the outer ring of the bearing. In general, the temperature of the bearing can be inferred based on the temperature outside the bearing chamber. If the lubrication and installation parts are suitable, the bearing temperature will rise sharply, resulting in abnormal high temperatures. At this time, the operation must be stopped and necessary preventive measures must be taken.
2. Check the sound condition during bearing rolling because even slight peeling or damage to the bearing can produce abnormal and irregular sounds. Therefore, a sound detector can be used to distinguish and detect the size and quality of the rolling sound of the bearing during operation, playing a preventive role in advance.
3. Checking the vibration of bearings during operation, such as peeling, indentation, rust, cracks, wear, etc., will be reflected in the vibration measurement of bearings. Bearing vibration is very sensitive to bearing damage. Therefore, by using special bearing vibration measuring instruments (frequency analyzers, etc.), the magnitude of vibration can be measured, and the specific situation of abnormalities cannot be inferred through frequency differentiation. Due to variations in the measured values caused by the usage conditions of the bearings or the installation location of the sensors, it is necessary to analyze and compare the measured values of each machine in advance to determine its judgment criteria.
Generally, the temperature of the bearing gradually increases with the start of operation. The introduction and response to the process of removing the bearing coating should reach a stable state after 1-2 hours. The normal temperature of bearings varies with the machine's heat capacity, heat dissipation, speed, and load.
Whether on the shaft or in the bearing seat, the bearing requires its position to be fixed in three directions: radial, axial, and tangential. Radial and tangential positioning is achieved through tight fitting of the bearing ring, while axial positioning only uses tight fitting in a few cases; Generally, axial limiting components such as end caps and retaining rings are used to limit the axial position within the clearance range.

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