If the temperature of the outer ring of the SKF bearing can be directly measured using an oil hole during rotation, it would be more appropriate to check the temperature. In general, the temperature of bearings can be inferred based on the temperature outside the bearing chamber. If the lubrication and installation parts are suitable, the bearing temperature will suddenly rise, causing abnormal high temperatures. At this time, the operation must be stopped and necessary preventive measures must be taken.

2. Check the sound condition of the bearing during rolling. Even if there is slight peeling or damage to the bearing, abnormal and irregular sounds can be produced. Therefore, a sound meter can be used to distinguish between them. A sound meter is used to check the size and quality of the rolling sound of the bearing during operation, which plays a preventive role in advance.

The vibration of SKF bearings during operation can be reflected in the vibration measurement of bearings, including peeling, indentation, rust, cracks, wear, etc. Bearing vibration is very sensitive to bearing damage. Therefore, the size of vibration can be measured by using special bearing vibration measuring devices (frequency analyzers, etc.), and the specific abnormal situation cannot be inferred through frequency analysis. Due to differences in measured values due to bearing usage conditions or sensor installation positions, 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 application of the bearing coating removal process reach a stable state after 1-2 hours. The normal temperature of bearings varies with the heat capacity, heat dissipation, speed, and load of the machine.

Whether on the shaft or in the bearing seat, SKF bearings require their positions 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.