Abstract:In order to further understand the mechanism of the skidding damage of rolling bearing,the microscopic analysis of the skidding damage belt on the inner ring raceway of rolling bearing was carried out by Xray Photoelectron Spectroscopy (XPS),Auger electron spectroscopy (AES),Energy Dispersive Xray (EDX) and Xray diffraction (XRD).The results show that the surface of the belt on the inner ring raceway has serious wear,its roughness is larger and oxidation wear occurs to form FeO.This may be due to the damage of the lubricating oil film between the roller and the inner ring raceway at the moment of the skidding damage of the rolling bearing,which causes dry friction between them.The transformation of martensite to austenite occurs on the surface of the belt,and the surface of the belt has higher C element content.This may be due to the higher flash temperature formed by the skidding damage,which reaches the austenitizing temperature and causes the austenite transformation of the bearing inner ring raceway surface,and then the rapid cooling of lubricating oil makes the transformation of austenite to martensite incompletely.The higher content of C element on the surface of the belt is the result of the retained austenite having stronger carbon solubility than martensite.