薄膜润滑轴承的特性远不同于常规轴承，在考虑间隙对润滑剂产生的影响后，润滑剂的特性将发生较大的变化。由于这种变化，薄膜润滑的特性才被广泛地研究和重视。文章应用等效粘度修正模型对径向滑动轴承进行了性能分析,对无限宽轴承可得出压力计算的解析表达式,从而可精确地计算轴承的性能。

The characteristic of the bearing under thin film lubrication is far different to that of conventional calculation bearing. After that the affection of the gap of bearing on lubricant is considered, .the properties of lubricant will display great change. Because of this change, the characteristics of thin film lubrication are generally researched and recognized. An equivalent viscosity corrected model is applied to analyze characteristic of journal bearing in this paper. For infinite width bearing, an analysis equation on pressure distribution is gained. Then, the properties of journal bearing are calculated accurately.