Abstract: The Reynolds equation of grease on Herschel-Bulkley model had been derived in this paper. The EHL problems of line contact with grease were discussed by numerical method. In the solving process, both the thixetrople of grease and the starving lubrication caused by yield shear stress of grease were taken into account. The numerical solution was coincided with the experimental data. The reason of the thickness of lubrication film decreasing with worktime was also explained.

Key words: 润滑脂弹流润滑, 线接触