How to install and inspect to improve the service life of bearings

Bearing is an important part of mechanical equipment, in order to ensure the best performance of bearings, reliable work, correct installation and operation, reasonable maintenance is very important. Which methods to extend the life of the bearing. First, improve the service life of bearings through lubrication Choose the right lubrication system and high quality lubricants. The oil film separates the surfaces of the oil film that are in contact with each other due to the load and provides the necessary protection against corrosion and wear, so it is essential for the proper functioning of all rotating or reciprocating parts, especially bearings and gears. For splash lubrication or circulating lubrication systems, the oil film can also transfer heat. Plants often experience unnecessary downtime and equipment deterioration due to improper lubrication.

Insufficient oil supply can lead to increased wear and temperature rise, resulting in excessive wear and/or early bearing failure and damage. Excessive lubrication, especially high-speed equipment, will generate too much heat due to oil agitation, which will cause chemical deterioration of lubricating oil, and will also lead to bearing damage. Correct lubrication and regular maintenance can avoid bearing damage caused by lubrication problems. To ensure reasonable lubrication should be done: 1) follow the equipment manufacturer's set guidelines for each equipment; 2) When adding grease, it should be filled between the bearing rolling parts and the housing (or rear-ring) to ensure that sufficient grease enters and the key raceway surface is fully lubricated; 3) Attention should be paid to when the bearing should be fatted; 4) Monitor the equipment's indicator instruments in order to detect early signs of problems, such as temperature fluctuations and/or abnormally high temperatures; 5) Pay attention to equipment noise or abnormal vibration; 6) Observe the oil leakage; 7) Regularly sample the lubricating oil and check whether it is contaminated. Second, bearing installation adjustment During assembly or installation, if the bearing internal clearance is too large or too small, or in some cases, the preload is too high, it can lead to early damage and shortened bearing life.

In addition to causing downtime and costly maintenance, improper bearing assembly and installation may also have more negative effects, such as affecting the operation of other parts and shortening their service life. Assembly, installation and regular maintenance according to the equipment manufacturer's manual is the best way to prevent problems. If time is tight, the adjustment device can be pushed forward or the gasket can be removed to correct the loose conical rolling bearing set.

On the other hand, the bearing adjustment is too tight, which may lead to overheating damage and have to replace the bearing. The process of assembling and installing bearings must be accurate, repeatable, and verifiable after installation. In addition, other part parameters must be considered to optimize system performance. In addition, the equipment is used according to the requirements of the OEM, and appropriate predictive maintenance items such as monitoring of lubricants or greases should be set up, which should include root cause analysis. In this way, the uptime of even the faulty equipment can be greatly extended. Proper lubrication and maintenance are critical, proper installation and use are also indispensable, and then make full use of the existing condition monitoring equipment escort. Failure to comply with installation and maintenance requirements will result in equipment failure, posing a major safety hazard.

The correctness of bearing installation after bearing installation has a direct impact on its life and the accuracy of the main engine. If improperly installed, the bearing not only has vibration, noise, low accuracy, temperature increase, but also the danger of being stuck and burned out; On the contrary, if installed well, not only can the accuracy be guaranteed, but also the life will be greatly extend