The lubrication method and detailed operational procedures for the roller bearings in the rolling mill are crucial for maintaining stable operation and extending the service life of the mill

The roller is a vital component of the rolling mill, and the bearings play a central role in its operation, underscoring their significance.

The lubrication principles for roller bearings in the rolling mill are fundamentally similar to those for other rolling bearings. However, considering the harsh working conditions of roller bearings, their operational performance and longevity largely depend on effective lubrication.

Currently, there are two main lubrication methods for roller bearings in rolling mills: grease lubrication and oil lubrication. Grease lubrication is commonly used because the lubricating grease provides both lubrication and sealing functions. Its sealing structure and lubrication equipment are simple, and grease replenishment is convenient. Therefore, as long as the operating conditions permit, roller bearings in rolling mills generally use grease lubrication. In comparison, oil lubrication has strong cooling effects and can remove contaminants and moisture from the bearings, offering several advantages.

If oil lubrication is chosen for lubricating roller bearings in the rolling mill, various options are available for detailed operational methods, including pressure oil lubrication, oil jet lubrication, oil mist lubrication, and oil-air lubrication. For roller bearings in rolling mills operating at conventional speeds, pressure oil lubrication is commonly used.

Oil jet lubrication, on the other hand, involves spraying lubricating oil into the interior of the roller bearings through nozzles located on one side of the bearings. This method is suitable for high-speed hot rolling mill or situations where pressure oil lubrication does not meet cooling requirements.

In summary, selecting the appropriate lubrication method, such as pressure oil lubrication or oil jet lubrication, is crucial for ensuring the optimal performance and longevity of roller bearings in rolling mills.