Rolling mill bearings play a very important role in bar rolling mills.

Dec 28, 2023

Bar is a simple cross-section profile with no obvious convex and concave parts in its cross-section, which is generally made by metal-plastic processing. Common rods include square, round, flat and hexagonal shapes. In China, it is customary to classify angle steel as simple section profiles. Simple cross-section profiles are divided into steel and non-ferrous metal alloy profiles. The more common non-ferrous metal alloy profiles are copper and aluminum, which are generally used in the power industry.

The bar mill is a rolling mill designed specifically for rolling bar stock. It usually uses high-speed rotating rollers to compress the bar to obtain the desired shape and size. Bar mills usually consist of multiple rolls that can be arranged in different ways to accommodate the production of bars of different sizes and shapes.

The working principle of the bar rolling mill is to feed raw materials (usually steel billets or wire rods) into the rolling mill, and through a series of rolling processes, they are gradually compressed and plastically deformed, and finally, the required bar shape and size are obtained. During the rolling process, the rollers of the rolling mill rotate at high speed to compress and extend the raw material and, at the same time, adjust the distance between the rollers to ensure the dimensional accuracy and surface quality of the bar.

The bar rolling mill is one of the most important equipment in steel rolling production. Its performance and efficiency directly affect the quality and output of bar products. With the continuous advancement of science and technology, bar rolling mill technology is constantly updated and improved to improve production efficiency and product quality.

Bar mill bearings are a very important part of the rolling mill. Their performance and service life directly affect the stability and production efficiency of the rolling mill. Therefore, the selection and maintenance of bar rolling mill bearings are also crucial.

First, bar rolling mill bearings must bear large radial and axial loads, so bearings with high load-bearing capacity and good stability need to be selected. Commonly used bar mill bearing types include four-row cylindrical roller bearings, double-row tapered roller bearings and angular contact ball bearings. These bearings have high rigidity and rotation accuracy and can meet the requirements of high-speed rotation and high-precision rolling.

Secondly, the installation and maintenance of bar rolling mill bearings are also very important. Before installation, the bearings must be cleaned and inspected to ensure they are free of defects or damage. When installing, it is necessary to ensure that the relative position of the bearing seat and the roller is correct to prevent vibration or friction caused by improper installation. In terms of maintenance, the lubrication of the bearings needs to be checked regularly to ensure that they are fully lubricated to reduce wear and friction. At the same time, bearings must be cleaned and replaced regularly to maintain their good working condition.

In addition, the service life of bar rolling mill bearings is also affected by many factors, such as bearing type, manufacturing quality, lubrication conditions, installation and maintenance, etc. To extend the service life of bearings, you need to pay attention to the following points:

High-quality bearing materials and manufacturing processes are selected to improve the wear resistance and durability of the bearings.

Make sure bearings are well lubricated to reduce friction and wear.

Control the operating temperature of bearings to prevent bearing damage caused by overheating.

Regularly check and adjust the bearing installation position to ensure its stability and rotation accuracy.

Deal with and replace damaged bearings promptly to prevent damage to other components.

To sum up, bar rolling mill bearings are a very important part of the rolling mill, and their performance and service life directly affect the stability and production efficiency of the rolling mill. Therefore, we must choose appropriate bearing types and high-quality bearing products and pay attention to installation and maintenance details to ensure their good working condition and long service life. At the same time, we must continue exploring and innovating to improve the working efficiency and product quality of rolling mills to meet changing market demands