Materials used in bearings in the industrial machinery are critical in determining the efficiency, durability and performance of the machinery. Some of the most commonly used bearings include deep groove ball bearings and spherical roller bearings that are meant to cope with the challenging working conditions. Nonetheless, their fundamental reliability lies in a single aspect, that is, their materials. The Significance of Bearing Steel The deep groove ball bearings are normally made of high-carbon chromium steel in the form of rings and balls. This type of steel is extremely hard, wear-resistant and fatigue-resistant. When well heat-treated and finished, it guarantees a smooth rolling surface capable of supporting radial and axial loads. Any kind of impurities or inconsistencies within the steel would result in early fatigue, cracks or pitting, resulting in early failure. By comparison, spherical roller bearings are also based on similar high-grade steel compositions but are des...