Cement Plant mechanical working conditions do not promote long life, due to dust, heat, moisture, and shock. Therefore, it is vital that every opportunity to improve the efficiency and reliability of the plant. Is a common bearing pieces of equipment, so by focusing on the key components of improving the service life can be significant savings in maintenance and production costs. NSK Europe has developed a number of materials and technologies to improve bearing performance.

     Poor lubrication and high pollution levels are responsible for 80% of premature bearing failure, so make two key factors bearing life. Cement industry uses both wet and dry process production of the finished product, resulting in bearing problems caused by dirt and moisture. Cement dust is hygroscopic, which means that it absorbs oil from the bearing grease inside the bearing and thus the polishing paste.

     However, in this environment, general maintenance and re-lubrication is essential to ensure continued reliable performance, fresh oil can quickly become contaminated, leading to failure itself. If this is the case, pure repair will not solve the problem, there is a material technical requirements, could take the form of NSK′s Hi-TF and ultra-TF bearing material.

     NSK has developed specifically for these special bearing steel harsh working conditions, they have proved very effective, has been in the steel and mining industries. From this success, they have made the product in the cement industry in the use of spherical roller bearings, high-capacity EM and EW series cylindrical roller bearings and tapered roller bearings and ball bearings. NSK check lubricant pollution is the main problem, literally under the microscope. Fragments bearing raceway particles are indented to cause stress concentration at the edges of the recesses. Second, if the viscosity of the lubricant is not high enough, then direct contact with the metal surface, resulting in stress concentration around the contact area. In both cases the cracks due to fatigue damage, and faster and shorten the life of the bearing, the end points of stress concentration at the surface of the material form.