First of all, lubrication is the key.
Choose the right lubrication system and high quality lubricant. Lubricating oil membranes separate the surface of the oil film that are in contact with each other due to load and provide the necessary protection against corrosion and wear. Therefore, for all rotating or reciprocating parts, especially bearings and gears, the lubricating oil film is not required for normal operation. Or missing.
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 lubricating oil and damage to the bearing.
Proper lubrication and regular maintenance can avoid bearing damage caused by lubrication problems. To ensure proper lubrication, we should:
• Follow the instructions for use by each device manufacturer for each device;
• It should be noted when the bearing should be fatliquored;
• Pay attention to equipment noise or abnormal vibration;
• Observe lubricant leaks;
• Monitor instrumentation of equipment equipment to detect signs of problems such as temperature fluctuations and/or abnormally high temperatures as early as possible;
• Sampling the lubricant regularly and see if it is contaminated.
• 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;
Secondly, if it is necessary to improve bearing performance, reasonable adjustment 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 regular 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 as required by the OEM.
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 follow installation and maintenance requirements will result in equipment failure and constitute a major safety hazard.
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Label: How to extend the service life of the bearing?
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