Cement equipment are one of the most challenging applications for bearings, in the vertical mill and other important equipment, bearings are used under dust, high temperature, low speed, lack of lubrications conditions. In cement machinery industry, we provide many solutions for roller press equipment. In the product structure, the large spherical roller bearing is the main bearing, which has a strong bearing capacity and can simultaneously carry high strength loads in both radial and axial directions. The combination of coating technology and surface treatment technology reduce the effect of abrasive particles, significantly improve bearing's life and extend the maintenance cycle. High quality bearing steel ensures ultra-high wear resistance and long working life of bearings.