The active places of mining machinery and construction machinery are mostly mining sites in mountainous areas and desert areas far from ordinary human life, and sometimes even work at 2,000 meters underground. There are many kinds of such machinery, from mineral crushing machinery to cutting machinery, screening machinery, loading machinery, conveying machinery, etc., which are equipment that operate continuously 24 hours a day. No matter what kind of machinery fails, it will have a great impact on the production of the mining site, and because of the recent large-scale machinery, it also makes the maintenance operation very difficult.

Therefore, in terms of the use of bearings, there are many very harsh conditions for bearings such as "heavy load + impact load", "light load + high-speed rotation", "heavy load + low-speed rotation". Therefore, users desire bearings that have the robustness, durability and high reliability to resist these harsh conditions. In order to meet these needs of users, the material technology, lubrication technology, analytical technology and more advanced bearing design technology has been integrated, for customers to improve the production efficiency of mining sites in harsh environments and reduce maintenance costs to contribute.