The main factors affecting the use of bearings refer to whether installation, adjustment, maintenance, and repair meet technical requirements. According to the technical requirements for bearing installation, use, maintenance, and upkeep, monitor and inspect the load, speed, working temperature, vibration, noise, and lubrication conditions of the running bearings. If any abnormalities are found, immediately identify the cause and make adjustments to restore normal operation. Installation conditions are one of the primary factors in the use of bearings. Improper installation of bearings often leads to changes in the stress state between the various parts of the entire bearing. When the bearing operates in an abnormal state and ends its service life early, the internal factors mainly refer to the three major factors that determine the quality of the bearing, including structural design, manufacturing process, and material quality.

The metallurgical quality of bearing materials was once the main factor affecting the early failure of rolling bearings. With the advancement of metallurgical technology, such as vacuum degassing of bearing steel, the quality of raw materials has been improved. The proportion of raw material quality factors in bearing failure analysis has significantly decreased, but it remains one of the main influencing factors of bearing failure. Proper material selection is still a factor that must be considered in bearing failure analysis.

The manufacturing of bearings generally involves multiple processing steps such as forging, heat treatment, turning, grinding, and assembly. The rationality, progressiveness and stability of each processing technology will also affect the service life of bearings. The heat treatment and grinding processes that affect the quality of finished bearings are often related to the failure of bearings

Rolling bearings are precision parts, so it is necessary to adopt a cautious attitude when using them. Even if high-performance bearings are used improperly, the expected performance effect cannot be achieved. Therefore, when using bearings, the following precautions should be taken:

Keep the bearings and their surrounding environment clean. Even if invisible smile dust enters the bearings, it will increase the wear, vibration, and noise of the bearings. When using and installing, it is necessary to be careful and careful, and strong stamping is not allowed. It is not allowed to directly hit the bearing with a hammer, and pressure is not allowed to be transmitted through rolling elements. Use appropriate and accurate installation tools, try to use specialized tools, and avoid using fabrics and short fibers as much as possible. To prevent rusting of bearings, when directly taking bearings by hand, it is necessary to thoroughly wash the sweat on the hands and apply high-quality mineral oil before operation. Special attention should be paid to rust prevention during the rainy season and summer.

The inner and outer diameter dimensions of bearings are manufactured according to standard tolerances. The degree of fit and tightness between the inner ring and shaft, and the outer ring and seat hole of the bearing can only be achieved by controlling the tolerances of the shaft neck and seat hole. The fit between the inner ring of the bearing and the shaft adopts a base hole system, while the fit between the outer ring of the bearing and the seat hole adopts a machine shaft system. Choosing the right fit requires knowing the actual load conditions, operating temperature, and other requirements of the bearing, which is actually very difficult. Therefore, in most cases, the selection of cooperation is based on the use of precision research.

In practice, attention should be paid to selecting the location of measurement points and the collection method. To accurately reflect the vibration status of rolling bearings, it is necessary to pay attention to the accuracy of the collected signals. Therefore, measurement points should be arranged closer to the bearings. There is usually a rear fan cover at the free end of the motor, and the selection of measurement points on the fixed screws of the fan cover has a good monitoring effect. In addition, it is necessary to pay attention to multiple collection and analysis of vibration signals for bearings, and to comprehensively compare them. Only then can we obtain accurate conclusions.