Bearings are important parts of mechanical equipment. In order to ensure the best performance of the bearings, reliable work, correct installation and operation, and reasonable maintenance are very important. This article shares several tips for extending bearing life.
First of all, lubrication is the key
Choose a suitable lubrication system and high-quality lubricants. The lubricating oil film separates the oil film surfaces that are in contact with each other due to the load bearing and provides the necessary protection against corrosion and wear. Therefore, for all rotating or reciprocating parts, especially bearings and gears, if normal operation is required, the lubricating oil film is indispensable lack. If it is splash lubrication or circulating lubrication system, the oil film can also transfer heat.Factories often experience unnecessary shutdowns and deterioration of equipment due to improper lubrication. Insufficient oil supply will lead to increased wear and temperature rise, resulting in excessive wear or early bearing failure and damage. Excessive lubrication, especially high-speed equipment, will generate excessive heat due to oil agitation, chemically degrade the lubricating oil, and cause bearing damage. SKF NU334 ECM bearings online , pls click here :
Proper lubrication and regular maintenance can avoid bearing damage caused by lubrication problems. To ensure reasonable lubrication:
1. Follow the instructions set by the device manufacturer for each device;
2. When adding grease, it should be filled between the rolling parts of the bearing and the housing (or retainer) to ensure that sufficient grease enters and the surface of the key raceway is fully lubricated;
3. Pay attention to when the bearings should be greased;
4. Indicating instruments of monitoring equipment to find signs of problems as early as possible
5. Such as temperature fluctuation and/or abnormal high temperature;
6. Pay attention to equipment noise or abnormal vibration;
7. Observe the leakage of lubricant;
8. Regularly sample the lubricating oil and check for contamination.
Secondly, reasonable adjustments are very important
During assembly or installation, if the internal clearance of the SKF bearing is too large or too small, or in some cases, the preload is too high, which may cause early damage and shorten the bearing life. In addition to causing downtime and expensive 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.
According to the equipment manufacturer's manual, assembly, installation and regular maintenance are 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 too loose tapered rolling bearing set.On the other hand, if the bearing is adjusted too tightly, it may cause overheating and damage, and the bearing has to be replaced. The process of assembling and installing the bearing must be accurate and repeatable, and it can be verified after installation. In addition, other component parameters must be considered to optimize system performance.In addition, use the equipment in accordance with the requirements of the OEM, and set appropriate predictive maintenance items such as monitoring of lubricating oil or grease, which should include the root cause analysis of the failure.
In this way, even the problematic equipment, its uptime can be greatly extended.
Correct lubrication and maintenance are very important, and correct installation and use are indispensable, and then make full use of existing condition monitoring equipment to escort. Failure to follow the installation and maintenance requirements will cause equipment failure and constitute a major safety hazard.
Do inspection after bearing installation
Whether the SKF bearing is installed correctly or not has a direct impact on its life and the accuracy of the main engine.
If installed improperly, the bearing will not only have vibration, high noise, low accuracy, large temperature rise, but also the risk of being stuck and burned;
On the contrary, a good installation will not only ensure accuracy, but also greatly extend the life span. Therefore, after the bearing is installed, it must be inspected.