Abstract
In this paper, prediction method of outer ring creep phenomenon of ball bearing under bearing load was studied. The mechanism of creep was verified by the 2D-analysis model. As a result, the elliptic motion on the outer ring surface was observed under bearing load with the rotation of bearing element. We established the 3D-analysis model to be predictable of a relative creep speed. The contribution of the design parameters for the creep speed was analyzed by using this model and the design of experiment. As a result, the contributions in bearing are large, and they in the casing are small.