进行了大量齿轮抗胶合承载能力试验，获得了胶合失效载荷与齿轮节线速度问的关系，根据胶合强度闪温计算准则反推获得了临界温度与齿轮节线速度间的关系，发现了临界温度随速度变化的新特性并提出了选取机油临界温度的准则和计算公式，全面合理地分析了各种试验现象，本文的研究结果可为齿轮实际应用中机油及工况的选择提供依据。 A large number of gear anti-cementing bearing capacity test was carried out. The relationship between the bonding failure load and gear pitch speed was obtained. The relationship between critical temperature and gear nodal speed was obtained by back-calculation according to the calculation formula of flashing temperature. With the new characteristics of speed variation and the criterion and calculation formula for selecting the critical temperature of oil, the various test phenomena are analyzed comprehensively and rationally. The results of this paper can provide the basis for the choice of oil and working conditions in the practical application of gear.