防燃、防切是行车安全“五防”重点之一。随着车辆的不断更新，滚动轴承所占比重越来越大。正确分析了解其轴温规律，对于提高运输能力，确保行车安全有着重要意义。根据胶济铁路第二代红外轴温探测系统在线运行一年多积累的大量数据，对胶济铁路运行列车滚动轴承的轴温规律进行分析。 Flame-retardant, anti-cut traffic safety is one of the “five defenses”. With the continuous updating of the vehicle, the proportion of rolling bearings is increasing. Correct analysis of its temperature law, for improving transport capacity, ensure traffic safety is of great significance. According to the second generation of infrared axial temperature detection system of Jiaoji Railway, a large amount of data accumulated over a year has been accumulated to analyze the shaft temperature law of roller bearings running on Jiaozhou Railway.