In modern industrial production, rolling mills are the core equipment whose function is to press materials such as metals into specific shapes and sizes by applying pressure. It is essential for the manufacture of metal materials such as steel and aluminum, ensuring the accuracy and uniformity of materials and providing key base materials for manufacturing.

Bearings, as a key component of the mill, are mainly responsible for supporting the rotating components to ensure smooth and efficient operation. In the operation of the mill, the bearing is subjected to huge load and pressure, but also to adapt to high-speed rotation and high temperature environment. Therefore, the performance of the bearing is directly related to the stability and production efficiency of the rolling mill.

This paper aims to analyze the working principle of rolling mill bearing and its key role in rolling mill. Through the detailed elaboration of its structure and function, we will reveal the importance of bearings to the normal operation of the rolling mill, and explore how to select suitable bearings to meet the requirements of the rolling mill.

Rolling mill bearings, designed specifically for the rolling industry, support rotating components and ensure their smoothness. According to the differences, it is mainly divided into:

Plain bearing:provides support between contact surfaces through oil film, reduces friction, is suitable for heavy load and low speed, can resist harsh environment.

Rolling bearings: Use rollers or balls to reduce contact area, reduce friction loss, suitable for high speed and light medium load, improve efficiency.

Bearings are standing on working, supporting rollers and uncoiling, winding and other equipment, and must be resistant to wear, heavy load, impact and extreme temperature. High quality mill bearings are essential for continuous and reliable operation.

Rolling mill bearings are decisive for efficiency and reliability, guaranteeing continuous operation and product accuracy. Its importance is analyzed as follows:

Efficiency impact:

Bearing efficient operation is related to speed and stability, improve production efficiency.

Reduce internal friction, reduce power requirements, and save energy.

Increase material speed, increase yield, maintain dimensional accuracy and surface quality.

Fault impact:

Failures can lead to downtime, reduced production, and increased maintenance costs.

Failure reduces accuracy, affects quality, or causes the entire batch of materials to be scrapped.

Extreme faults may cause safety accidents, endanger the safety of operators, and damage the device.

Maintenance importance:

Regular maintenance to prevent downtime, to ensure continuity and stability of production.

Use the right lubricant to extend life and reduce maintenance costs.

A good maintenance strategy enhances line reliability, reduces delays and ensures on-time delivery.

In conclusion, high quality bearings and effective maintenance are essential to ensure rolling mill efficiency, prevent interruption and ensure product quality.

Maintenance of mill bearings is essential to ensure long-term stable operation. Here are the key practices, problem identification methods, and common troubleshooting strategies:

Best maintenance practices:

Periodic inspection: Develop a plan that includes visual, vibration analysis, temperature and sound monitoring to detect anomalies.

Lubrication management: Select suitable lubricants and replace them according to the recommended cycle.

Clean seal: Keep the bearing area clean, check the integrity of the seal against contamination and leakage.

Torque preload: Install bearings correctly to avoid over-tightening and ensure accurate preload.

Potential problem identification:

Unusual noises: Look out for unusual noises, such as creaking or banging.

Temperature change: Use an infrared thermometer to monitor temperature rise and alarm when friction increases or lubrication is insufficient.

Abnormal vibration: Bearing wear or damage is detected with vibration analysis tools.

Performance reduction: Focus on production efficiency and product quality decline, may be related to bearings.

Fault cause and solution:

Contamination: Keep clean and use seals to reduce wear and tear.

Insufficient lubrication: Check the lubricant regularly and add or replace it if necessary.

Installation error: Follow instructions and torque specifications for proper installation.

Overload: Ensure that the load meets the design parameters and upgrade the bearing if necessary.

The implementation of these practices can reduce the failure rate, extend the bearing life and ensure the high efficiency of the rolling mill.

This paper discusses the working principle, criticality and maintenance importance of rolling mill bearing. Bearings ensure high efficiency and stability by reducing friction and supporting rotating parts. Lubrication is essential for performance, reducing friction and wear, and protecting surfaces with heat dissipation.

Bearing performance affects production efficiency and product quality, it is necessary to check regularly, properly lubricated, keep clean and sealed, and install torque control correctly to ensure long-term reliable operation, prevent failures, extend life, and reduce maintenance costs.

Rolling mill bearing is the core component of rolling mill, performance maintenance is very important.