Coal mine machinery is a specified large equipment applied in coal mining, transport, transport, including the mining machine, conveyor, roadway driving equipment, underground auxiliary haulage vehicles, equipment, mine winch, ventilation and dust removal equipment, coal washing equipment, cranes, and other special vehicles.
The operation environment characteristics of this kind of machinery:
1, the working environment is relatively bad. Has more Dust and water vapor and corrosive gases.
2, most of the machinery is working under high load, high vibration, impact and friction greatly operating conditions
3, the running time is longer, and mostly is continuous operation
4, operation continuity determines the bearing can not get the good maintenance and lubrication
So when we are going to purchase NTN bearing, must refer to the above points, so that it can save the cost,and also can shorten the construction period!