Application of small-size four-row tapered roller bearings in rolling mills.

Aug 23, 2024

In the steel rolling industry, rolling mills are core equipment, and their performance and stability directly affect production efficiency and product quality. Bearings, as key components of rolling mills, carry huge radial and axial loads, and their performance plays an important role in the overall operation of rolling mills. Small-size four-row tapered roller bearings have been widely used in rolling mills due to their unique design and excellent performance.

1. Characteristics of small-size four-row tapered roller bearings

Small-size four-row tapered roller bearings are a special type of rolling bearing. Its main feature is that they can withstand large radial and axial loads at the same time, have a small installation space, and are easy to install and disassemble. This type of bearing usually adopts a four-row roller design, which makes the load distribution more uniform, thereby improving the load capacity and service life. In addition, small-size four-row tapered roller bearings also have the following characteristics:

Strong load capacity: Due to the design of four-row rollers, the bearing can effectively resist axial loads while bearing radial loads without the need for additional thrust bearings.

Small installation space: Compared with other types of bearings, small-size four-row tapered roller bearings require less installation space and are easy to install in compact rolling mill structures.

Easy installation and disassembly: This type of bearing usually uses a loose fit on the roll journal, which is convenient for quick roll replacement and improves production efficiency.

Reduce wear: By setting a spiral groove in the inner ring hole or an oil groove on the side of the inner ring, the wear between the inner ring and the base can be effectively reduced, and the service life of the bearing can be extended.

2. Design advantages

Small-size four-row tapered roller bearings have the following design advantages:

Simplified installation: Due to fewer parts, the installation process is relatively simple, which reduces the difficulty and cost of installation.

Optimize load distribution: The design of four-row rollers makes the load distribution more uniform, reduces local wear, and improves the overall life of the bearing.

Reduce the inner ring width tolerance: This helps to simplify the axial positioning on the roll journal and improve the installation accuracy.

Strong adaptability: According to the needs of different applications, bearings of different sizes and structures can be designed to meet the requirements of different rolling mills.

3. Maintenance and management

The key to the maintenance and management of small-sized four-row tapered roller bearings lies in the following points:

Regular inspection: Check the bearings regularly, including checking the lubrication, sealing effect bearing wear, etc., to find and deal with problems in time.

Correct lubrication: According to the use and lubrication requirements of the bearings, select appropriate lubricants and lubrication methods to ensure that the bearings run in a good lubrication state.

Avoid overload: During use, the bearings should be prevented from being subjected to excessive loads or impacts to avoid damage to the bearings.

Reasonable installation: When installing the bearings, they should be strictly carried out in accordance with the installation requirements to ensure that the installation accuracy and matching clearance of the bearings meet the requirements.

Timely replacement: When the bearings are severely worn or damaged, they should be replaced in time to avoid affecting the overall operation of the rolling mill.

Small-sized four-row tapered roller bearings have been widely used in rolling mills due to their unique design and excellent performance. Through reasonable design and effective maintenance and management, their advantages, such as strong load-bearing capacity, small installation space, and convenient installation and disassembly, can be fully utilized to improve the production efficiency and product quality of the rolling mill. At the same time, with the continuous development and improvement of sealing technology, the application of small-sized four-row tapered roller bearings in rolling mills will be more extensive and in-depth in the future.

FV also produces a lot of small-sized four-row tapered roller bearings for its steel mill customers. We have great advantages in terms of price and delivery time. We also try to be perfect in some small details. For example, for packaging, we generally use aluminum-plastic bags for vacuum packaging of bearings of this size, which have good sealing and reusability.

In summary, the application of small-sized four-row tapered roller bearings in rolling mills is of great significance. By continuously optimizing the design and strengthening maintenance management, its performance and service life can be further improved, providing strong support for the development of the steel rolling industry.