What are the key points for FAG bearing heating?

What are the key points for FAG bearing heating?

The main reasons for the heating of FAG bearings include poor lubrication, improper installation, insufficient cooling, high vibration, abnormal bearings, and problems with lubricating grease. ‌

Poor lubrication: Lubrication is an important factor affecting the operating status of bearings. If the lubrication is insufficient or excessive, the quality of the lubricating oil does not meet the requirements, deteriorates, or contains impurities, it will cause the bearing to heat up. Appropriate lubrication can reduce direct contact between metals, lower friction and wear, while also helping to dissipate heat and extend the service life of bearings by 12.

Improper installation: The installation accuracy of bearings has a direct impact on their operating status. If the installation is not correct or the accuracy is low, it will cause the bearing to heat up or wear more severely, and even produce vibration and noise. The correct installation should ensure that the centerline of the shaft and bearing hole coincide, avoiding installation skewness or misalignment.

Insufficient cooling: The effectiveness of the cooling system is crucial for bearing temperature control. Blockage in pipelines, inappropriate selection of coolers, or severe scaling can all affect the cooling effect and cause an increase in bearing temperature. Regular inspection and maintenance of the cooling system in good condition are important measures to prevent bearing overheating.

High vibration: The reasons for high vibration may include poor coupling alignment process, rotor dynamic and static imbalance, poor foundation rigidity, etc., all of which can cause bearing heating. By adjusting and optimizing the status of relevant components, vibration can be effectively reduced, thereby avoiding bearing overheating.

Abnormal bearings: including bearing damage, poor assembly processes, and inadequate clearance adjustment, all of which can directly affect the normal operation of bearings and cause heating. Regular inspection and maintenance of bearings, as well as timely replacement of damaged components, are key to maintaining the good operating condition of bearings.

The issue of lubricating grease: The selection, cleanliness, and mixing of different types of grease can all affect the operating status of bearings. Choosing appropriate lubricating grease, avoiding the mixing of different types of grease, and regularly checking the cleanliness and replacement cycle of grease are important measures to maintain the good operating condition of bearings.

In summary, there are various reasons for the heating of FAG bearings, and solving this problem requires starting from multiple aspects, including optimizing the lubrication system, ensuring correct installation, maintaining a good cooling system, reducing vibration, and regularly inspecting and maintaining the bearing condition‌