The dimension series of rolling bearings as mechanical elements have been standardized internationally, and the material to be used for them specified in ISO 683/17(heat treatment, alloy, and free cutting steels/part 17 ball and roller bearing steels).However, materials are also standardized according to standards of individual countries and,I n some cases, makers are even making their own modifications.
As internationalization of products
Incorporating bearings and references to the standards of there kinds of steels are increasing nowadays, applicable standards are compared and their features described for some and their features described same representative steels.