The main factors affecting the life of rolling elements

Analysis of the main reasons of the damaged rolling element affecting its life:

(1) The composition, inclusion content, structure density and quality of the raw material steel for manufacturing rolling elements;

(2) Hardness of the rolling element;

(3) Metallographic microstructure of rolling elements;

(4) Surface morphology and quality of rolling elements; 

(5) Surface stress state of rolling elements;

(6) Surface wettability and lubricating film of rolling elements;

(7) Grinding burns and soft spots on the surface of rolling elements;

(8) Precision grade of rolling elements;

(9) Predetermined design requirements for roller convex and convexity value;

(10) Difference in roller grouping.