Coal mining machinery equipment is a type of large-scale mechanical equipment specifically used for mining, conveying, and transportation in coal mines, including mining machines, conveyors, tunnel excavation equipment, underground auxiliary transportation, vehicle equipment, mine winches, ventilation and dust removal equipment, coal washing equipment, cranes, specialized vehicles, etc.

The mechanical equipment used in coal mine production has the following characteristics:

1. The working conditions are harsh, and most mechanical equipment operates under conditions such as high speed, heavy load, vibration, impact, friction, and medium corrosion;

2. Poor lubrication conditions, due to harsh environments, harsh working conditions, and short downtime, result in poor lubrication and maintenance of mechanical components.

3. The working environment is harsh, and the equipment is constantly surrounded by dust, water vapor, and harmful gases;

4. Long running time, with the vast majority of mechanical equipment operating continuously day and night for years and months;

Only by selecting the correct bearings, conducting regular maintenance, timely maintenance, improving maintenance quality, and ensuring that all production equipment operates in good condition, can we reduce the wear and tear of coal mining machinery, extend its service life, and achieve effective measures for high-yield, high-efficiency, and safe coal production. Mining operators can ensure high productivity and achieve the expected service life of equipment.