How to effectively extend bearing life?
Lubrication is the key
Choose the right lubrication system and high quality lubricant. Lubricating oil membranes will separate the surfaces of the oil film that are in contact with each other and provide 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 not available. lack. In the case of splash lubrication or a recirculating lubrication system, the oil film also transfers heat.
Factories often experience unnecessary downtime and deterioration of equipment conditions due to improper lubrication. Insufficient oil supply can result in increased wear and temperature rise, resulting in excessive wear and/or early bearing failure and damage. Excessive lubrication, especially in high-speed operation, will cause excessive heat due to oil agitation, causing chemical degradation of the lubricant and damage to the bearing.
Proper lubrication and regular maintenance can avoid bearing damage caused by lubrication problems. To ensure reasonable lubrication should be done:
Follow the instructions for the device manufacturer to set up for each device;
When grease is added, it should be filled between the bearing rolling parts and the casing (or retainer) to ensure that a sufficient amount of grease enters and the critical raceway surface is fully lubricated;
It should be noted when the bearing should be fatliquored;
Monitor the instrumentation indicator to detect signs of problems such as temperature fluctuations and/or abnormally high temperatures as early as possible;
Pay attention to equipment noise or abnormal vibration;
Observe the lubricant leak;
Sampling the lubricant regularly and see if it is contaminated.
Reasonable assembly is very important
During assembly or installation, if the internal clearance of the bearing is too large or too small, or in some cases, the preload is too high, it may lead to early damage and shortened bearing life. In addition to causing downtime and costly repairs, improper assembly and installation of the bearings may have more negative effects, such as affecting the operation of other parts and shortening their service life.
Assembly, installation and scheduled maintenance are the best way to prevent problems from occurring according to the equipment manufacturer's manual. If the time is tight, push the adjustment device or remove the spacer to correct the loose tapered roller bearing set.
On the other hand, the bearing is too tightly adjusted, which may cause overheating damage and the bearing has to be replaced. The process of assembling and mounting the bearings must be accurate, repeatable, and verifiable after installation. In addition, other part parameters must be considered to optimize system performance.
In addition, use the equipment in accordance with OEM requirements and set appropriate predictive maintenance items such as monitoring of lubricants or greases, including fault root cause analysis. In this way, even the problematic equipment can greatly extend its uptime.
Proper lubrication and maintenance are critical, and proper installation and use are also indispensable, taking advantage of existing condition monitoring equipment to escort. Failure to comply with installation and maintenance requirements will result in equipment failure and constitute a major safety hazard.
After the bearing is installed, it is inspected
The correct installation of the bearing has a direct impact on its life and host accuracy.
If improperly installed, the bearing not only has vibration, high noise, low precision, large temperature rise, but also the danger of being stuck and burned. Conversely, if it is installed well, it can not only ensure accuracy, but also prolong its life. Therefore, after the bearing is installed, it must be inspected.
Reprinted from the network