Bearing use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair meet the technical requirements. According to the technical requirements of SKF bearing installation, use, maintenance, and maintenance, the load, speed, working temperature, vibration, noise and lubrication conditions of the universal joint bearing in operation are monitored and inspected. If an abnormality is found, the cause will be immediately found and carried out. Adjust to make it back to normal. The installation condition is one of the primary factors in the use factors. The bearing is often caused by improper installation, which causes the stress state of the various parts of the whole set of bearings to change. The bearing runs in an abnormal state and ends its service life early. The main internal factors are Refers to the three major factors that determine the quality of the bearing, such as structural design, manufacturing process and material quality.

1) Bearing design parameters: including the number of bearing rolling elements, ring wall thickness and clearance, etc.

2) Manufacturing errors of bearing parts: including the difference in surface roughness, cross pattern and roundness of bearing raceways and rolling elements. A large number of experimental studies have shown that the influence of waviness on the vibration of SKF bearings is dominant, while the influence of surface roughness and roundness is relatively small.

3) Bearing operating conditions: During the operation of the bearing, load, speed, and lubrication conditions have the greatest impact on bearing vibration.

4) Bearing installation parameters: Factors such as the fit between the bearing and the shaft and the bearing seat, and the deviation during installation also have an impact on the vibration of the bearing.

As the bearing rotates, the raceway surfaces of the inner ring and the outer ring are in rolling contact with the rolling elements, so the running track is a dark surface, and the running track attached to the raceway surface is not abnormal, so the load condition can be known. Therefore, when removing the universal joint bearing, please pay close attention to and observe the running track of the raceway surface. If you carefully observe the running track, you will know that it only bears radial load, bears large axial load, bears moment load, or has extreme rigidity unevenness on the bearing box.

It can be checked whether accidental load is added to SKF bearings and whether the installation error is large, etc., and it becomes a clue to investigate the cause of bearing damage.

If there is no wrong choice and can be used correctly, it will be used for a long time before the life of the universal joint bearing. In this case, the damage state is peeling. On the other hand, there are accidental premature damage and early damage that cannot withstand use. As the cause of this early damage, there are insufficient considerations in use and lubrication, and foreign matter intrusion, bearing assembly errors and large shaft deflection , Insufficient research on shafts and bearing boxes, etc.

It can be said that there are many cases where these reasons overlap with each other. Therefore, it is necessary to fully understand the machinery used in the bearing, the operating conditions, and the structure of the SKF bearing periphery. If you can clarify the situation before and after the accident, and then combine the damage of the universal joint bearing and various reasons to investigate, it is It can prevent the recurrence of similar accidents.