Fully split bearing with housing with seat helps improve coal mining efficiency

At present, China is still a major producer and consumer of coal globally. Coal mining is scattered and the efficiency needs to be improved, leading to frequent safety accidents in coal mining areas. For coal enterprises, accelerating the intelligent construction of coal mines, deepening the clean, safe, and efficient production and utilization of coal, and accelerating the green development of the coal industry are major challenges.

When you step into a coal mining area, what catches your eye may not be the boundless black coal, but several crisscrossing "long dragons", some several kilometers long, and some even stretching for tens of kilometers. These 'long dragons' are the coal conveyor lines. Whether in underground or open-pit mines, coal mining requires transportation through conveyor lines to the next stage for processing or use. The coal conveyor line is an important component of coal mining and transportation.

In order to increase coal transportation capacity, coal conveyor lines often bear large loads; At the same time, the mining environment is relatively harsh and there is a lot of dust. However, most coal mines require 24-hour continuous operation, so the reliability and stability of coal conveyor lines are crucial for improving coal mining efficiency. Any unexpected shutdown can become a production or operational accident.

Figure 1 Coal Conveyor Line

Coal conveying lines usually use integral bearings or ordinary seat bearing units (internal bearings are integral bearings) as the support for the drum, and their sealing effect is average. Dust is easy to enter the interior of the bearings, which may cause premature failure of the bearings. At the same time, the seat bearing with housing at the drive roller position of the conveyor line is located between the drive equipment and the drum, which consumes time and effort for later maintenance and repair, resulting in a longer downtime of the conveyor line. The traditional bearing scheme restricts the improvement of coal mining efficiency and also exposes maintenance workers to safety threats for a long time.

Figure 2: Ordinary Seat Bearing Unit

(Internal bearings are integral bearings)

Timken ® The fully split cylindrical roller bearing with housing with seat is a new generation of bearing solution. Compared with ordinary bearing units with seats, its internal cylindrical roller bearings have a "half half" structure, and a "half half" bearing box is added between the bearing and the bearing seat, so we are also accustomed to calling it a fully split bearing with housing with seats. The fully split bearing with housing with seat is suitable for situations where the installation and disassembly of bearings are limited, perfectly fitting the application of coal conveyor line drive rollers.

Figure 3 Timken ® Fully split cylindrical roller bearing with housing with seat

(The internal bearing is a fully split bearing)

The fully split bearing with housing with seat adopts radial installation and disassembly, without the need to disconnect and disassemble components around the bearing, such as motors, gearboxes, and couplings, greatly reducing downtime caused by bearing maintenance and repair. In addition, high-performance and diverse sealing options provide tight protection for the healthy operation of bearings. The unique design of the cylindrical roller bearing core and outer spherical bearing housing ensures that it balances the function of centering and excellent axial floating ability.

Figure 4 Application of Fully Split Seat Bearing with housing in Belt Conveyor

The fully split bearing with housing with seat can bring considerable savings in operating costs. Firstly, it eliminates unexpected shutdowns and production losses caused by time-consuming installation processes - which can be significant in some cases; Secondly, it greatly reduces installation costs. Compared with ordinary bearing units with seats, full split installation is faster and simpler; Thirdly, it eliminates the cost of disassembling and replacing adjacent components; After Z, the maintenance cost is reduced, and the fully split bearing with housing with seat is more convenient for comprehensive inspection, with extremely high maintenance efficiency. By adopting a fully split bearing with housing with a seat, although the initial investment cost is relatively high, from the perspective of the entire lifecycle, it can significantly improve the operational efficiency and profitability of coal conveying lines and bearings.

Figure 5 Savings in operating costs of fully split bearing units with seats

As a bearing manufacturer with over 120 years of history, Timken Company has always been committed to improving equipment efficiency and providing added value to customers by leveraging its engineering and technological advantages. We keep up with the trend of the times, solve engineering problems for customers, and contribute to social progress.

2025 June 4th Week FK Product Recommendation:

SNU500:

The SNU500 series bearing housings are split plummer block housings commonly used with self-aligning ball bearings or spherical roller bearings. Made from high-strength cast iron or ductile iron, they offer excellent rigidity and durability. The design allows for easy mounting, lubrication, and maintenance of the bearings. SNU500 housings are suitable for medium-speed and heavy-load applications and are widely used in conveyors, fans, mining equipment, and metallurgical machinery.

https://www.fk-bearing.com/products/SNU500/757.html