The normal operation of angular contact ball bearings can not be separated from daily inspection and maintenance, and the quality can be known at a try. The quality of angular contact ball bearings can also be judged by their appearance. The steel seal of angular contact ball bearings produced by regular manufacturers is clear, with an independent packaging design, and the appearance is not damaged. The quality of such angular contact ball bearings will not be poor

Check whether the parts of the double-row ball bearing are loose. If they are loose, adjust them and tighten them. Turn the wheel by hand for several turns to see if it is smooth and noisy. If the bearing is smooth and noisy, it indicates that the bearing is not operating normally. At this time, we need to carry out corresponding inspections to find out the causes of this situation one by one.

Check whether the bearing is rusted. If it is rusted, the bearing has been corroded. At this time, we need to apply insulating paint.

Check whether bearing lubricating grease is needed in time. If there is no lubricating grease, the bearing will vibrate during operation. Therefore, we should add the lubricating agent to the angular contact ball bearing in time to maintain its normal operation.

We need to disassemble the double-row angular contact ball bearing first and then identify and eliminate whether the double-row angular contact ball bearing has faults. It must be professional when checking. They will use professional instruments to detect and monitor so that it is easy to identify whether there is noise. Only when the problem is found, can we troubleshoot.

Generally, the sound of angular contact ball bearing is relatively low during operation. If it makes a sharp hiss or irregular sound, it is likely that the rolling element is damaged. Because the surface of the rolling element is damaged, it will make noise. What we need to do is to replace the bearing immediately. With the development of technology, the noise of angular contact ball bearings does not need to be checked manually, but sometimes we can not blindly trust the judgment of the machine. We can first check the machine and then check it manually to ensure its safe operation.

Generally speaking, the temperature will not change only under normal conditions. If the temperature rises, the bearing has failed. We can combine the method of listening to sound and the method of identifying temperature to detect, so as to ensure that nothing is lost.

We first take samples of the lubricant and then identify whether foreign matters have mixed in through its cleanliness. Then we sampled, detected, and analyzed the foreign matter. After the results were obtained, we would avoid such things from entering the lubricant, so that similar situations would not occur again.

The chamfer of the angular contact ball bearing reflects the processing method of the angular contact ball bearing. The chamfer is black, indicating that the hardness of the bearing is increased after heat treatment such as quenching. Some people think that the chamfer is not beautiful because it is not completely processed. This is a mistake. The so-called chamfer of the bearing is the junction of the horizontal and vertical surfaces. Due to the limitation of production technology, counterfeit bearings are not satisfactorily processed at these corners.

The bearing body will be printed with brand words, marks, etc. The font is very small, but most of the factory's products use steel stamp technology, and they are embossed before overheating treatment. Therefore, although the font is small, it is deeply concave and very clear. The fonts of counterfeit products are not only vague, but also floating on the surface due to rough printing technology, and some can even be easily erased by hand.

In general, genuine brands have their own special designers to design the external packaging and arrange factories with qualified production conditions for production, so the packaging is very clear and unambiguous from the line to the color block. Some imported brands also have special packaging for their own protection