It is necessary to select the size and accuracy according to the use location, use conditions and environmental conditions, and matching the appropriate bearing is the premise to ensure the life and feasibility of the one-way bearing.

1. Use parts: One-way bearings are suitable for bearing combined radial and axial loads mainly based on radial loads. Usually, two sets of bearings are used in pairs, mainly for front and rear wheel hubs, driving bevel gears, and differentials of automobiles. , reducer and other transmission parts.

2. Allowable speed: in the environment of correct installation and good lubrication, the allowable speed is 0.3-0.5 times the limit speed of the bearing. Under normal circumstances, 0.2 times the limit speed is appropriate.

3. Permissible inclination angle: One-way bearings generally do not allow the shaft to be inclined relative to the housing hole. If there is an inclination, the maximum should not exceed 2′.

4. Allowable temperature: Under normal load, and the lubricant has high temperature resistance and sufficient lubrication, the general bearing is allowed to work at an ambient temperature of -30°C to 150°C.

As soon 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 bearing running track attached to the raceway surface is not abnormal, so the load conditions can be known , so in the case of removing the bearing, please pay close attention to and observe the running track of the raceway surface. If you carefully observe the running trajectory, you will know that only radial load is carried, large axial load is carried, one-way bearing is subjected to moment load, or there is extreme rigidity unevenness on the bearing housing. It can be checked whether an unexpected load has been added to the bearing and whether the installation error is large, etc., and become a clue to investigate the cause of bearing damage.

If there is no wrong selection and correct use, it will be used for a long time before the bearing life. In this case, the damage state is peeling. Bearings, on the other hand, are accidentally damaged early and cannot withstand the early damage caused by use. As the cause of the early damage, there are insufficient considerations in use and lubrication, and furthermore, there are foreign matter intrusion, errors in bearing assembly, and deflection of the shaft. Large, the bearing has not enough research on the shaft and bearing housing, etc.

It can be said that these reasons of bearings overlap each other in many cases. Therefore, on the basis of fully understanding the machine used by the bearing, the conditions of use, and the structure of the bearing periphery, if you can clarify the situation before and after the accident, and then investigate the damage of the one-way bearing and various reasons, you can prevent the A similar accident happened again.