CSK-P, CSK-PP series One Way Clutch Bearings One Way Clutch Bearings,CSK30PP One Way Clutch Bearings,CSK15PP One Way Clutch Bearings NINGBO BORINE MACHINERY CO.,LTD , https://www.borine-agroparts.comThe Causes of Abnormal Phenomena in NTN Rolling Bearings
NTN rolling bearings are widely used in various industrial applications. However, during operation, their performance—such as load capacity, rotational accuracy, and wear resistance—can be affected by both internal quality issues and external environmental factors. When the bearing's performance falls below the required standards, it may lead to defects or even complete failure. This can result in machine downtime, making it crucial to quickly identify the root cause and implement corrective measures.
There are several common reasons for abnormal behavior in NTN bearings:
1. **Improper Lubrication**: Using expired or incorrect lubricants, over-greasing, or having an excessive oil level can all lead to poor performance. Insufficient internal grease or contamination from dust, sand, carbon particles, water, acid, or paint can also damage the bearing.
2. **Incorrect Installation**: Directly hitting the bearing with a hammer, improper installation methods, or misalignment between components can cause damage. Poor fit between the shaft and bearing sleeve, or an undersized shaft diameter, may lead to slippage and surface scratches.
3. **Misalignment and Deformation**: Shaft bending, excessive shoulder clearance, or distortion of the bearing housing can cause misalignment, leading to increased friction and wear. Improperly sized shoulders or deformed seals may also contribute to failures.
4. **Contamination**: Foreign particles such as dirt, debris, or moisture entering the bearing housing can accelerate wear and reduce lifespan. Inadequate cleaning before installation can leave contaminants inside the system.
5. **Excessive Clearance**: Too much internal clearance can cause the shaft to vibrate excessively, reducing stability and increasing the risk of failure.
6. **Seal Damage**: Worn or damaged seals can allow lubricant to leak out and contaminants to enter, further degrading performance.
7. **Environmental Factors**: Exposure to harsh environments, such as high temperatures, humidity, or corrosive substances, can significantly impact the bearing’s longevity and reliability.
Regular maintenance, proper installation, and using the correct lubricants are essential to prevent these issues. If problems arise, it is important to diagnose them promptly and take appropriate action to avoid costly downtime and equipment damage.
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This article is originally published on China Bearing Network. For more details, visit: http://www.chinabearing.net
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The cause of the abnormal phenomenon of NTN rolling bearing
Source: China Bearing Network | Date: July 29, 2013