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

The mechanical equipment 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, the vast majority of mechanical equipment operates day and night, continuously 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 high production efficiency and safety in coal production. Only then can mining operators ensure high productivity and achieve the expected service life of equipment.