Method of testing performance after bearing installation

When we are using the bearing, if it is found that the temperature is very high, we should stop the operation of the equipment quickly, then find out the reason, and deal with it according to the solutions provided above, but it may be due to different reasons for the bearing heating, so The solutions are also different, so it is still necessary to deal with specific situations and complete them with the help of technical personnel.

When we are using the bearing, if it is found that the temperature is very high, we should stop the operation of the equipment quickly, then find out the reason, and deal with it according to the solutions provided above, but it may be due to different reasons for the bearing heating, so the solutions are also different, so it is still necessary to deal with specific situations and complete them with the help of technical personal.

1. To check the temperature of the imported bearing when it rotates, it is more appropriate to use the oil hole to directly measure the temperature of the outer ring of the bearing. Under normal circumstances, the temperature of the bearing can be inferred from the temperature outside the bearing chamber. If the lubrication and installation parts are suitable, the bearing temperature will rise sharply, and abnormally high temperature will occur. At this time, the operation must be stopped and necessary preventive measures should be taken.

2. Check the sound when the bearing is rolling. Even if the bearing has slight peeling and other damage, it will emit abnormal sound and irregular sound, so it can be distinguished with a sound meter. The size and quality of the sound are checked to play a preventive role in advance.

3. Check the vibration of imported bearings at work, from spalling, indentation, corrosion, cracks, wear, etc., will be reflected in the vibration measurement of the bearing. The vibration of the bearing is very sensitive to the damage of the bearing. Therefore, by using special bearings Vibration measuring instrument (frequency analyzer, etc.) can measure the magnitude of vibration, and the specific situation of abnormality cannot be inferred by frequency division. Since the measured values are different due to the use conditions of the bearing or the installation position of the sensor, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.

Generally, the temperature of the bearing slowly rises as the operation begins. The introduction and response of the bearing coating removal process will reach a stable state after 1-2 hours. The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed and load of the machine.

Whether it is on the shaft or in the bearing seat, the imported bearing requires that its position be fixed in three directions: radial, axial and tangential. Radial and tangential positioning is achieved by a tight fit on the bearing ring, but axial positioning is only used in a few cases with a tight fit; generally, axial limit parts, such as end caps and retaining rings, are used to place the shaft. The direction position is limited within the clearance range.

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