Client: International Coal Mining Group middling coal Mining Market: Underground Mining

Application: Long arm coal mining machine Tengyuan Bearing Company Advantages:

Successfully developed TTB suitable for long arm coal mining machines ®    Double row double inner ring tapered roller bearings (TDI) have significantly better performance than traditional self-aligning roller bearings

Small axial displacement

Strong ability to withstand impact loads

Capable of withstanding greater axial forces

Better lubrication performance

For the original equipment providers of long arm coal mining machines, it is time to make a decision whether to endure inefficient operations or to upgrade and enjoy more cutting-edge technology! Although for a long time, the cutting head bearings of long arm coal mining machines have mostly used self-aligning roller bearings (SRB), the effect is unsatisfactory because the axial displacement is too large, exceeding the application limit of the floating seal and causing damage to the floating seal. Impurities can easily enter the bearings and cause damage.

As the main equipment for underground mining, the long arm coal mining machine operates with its cutting head under high loads accompanied by impact loads, high temperatures, and low speeds. Such a harsh working environment is a severe test for bearings. Once the equipment malfunctions and shuts down due to bearings, the losses caused are enormous: due to the limited space and inconvenient use of large-sized disassembly and maintenance tools, it increases the difficulty of maintenance; The difficulty of maintenance has increased, leading to an increase in repair time and energy, which will directly affect production and cause huge losses; In addition, if the bearings are damaged, the cost of purchasing replacement bearings and production delays caused by delivery time will significantly increase operational costs

Due to TTB ®     The unique high-quality characteristics of TDI have led most domestic and foreign manufacturers to adopt Tengyuan Bearing Company's TDI design when developing high-power coal mining machines. Timken Company, renowned for its tapered roller bearings (TRBs), has helped coal mining machine manufacturers achieve technological innovation through its deep understanding of customer products and rich knowledge and experience, successfully making tapered roller bearings the mainstream solution for selecting cutting head bearings for coal mining machines. The new era of the application of cutting head bearings in coal mining machines has arrived!