For improving the design reliability and efficiency of the stubble roller, visualized dynamic gap Angle was obtained though drawing blade moving track according to movement equation using ug - NX3.

At least one blade Angle bearing of a pair of such bearings permits an axial movement of the respective tension or carrier bar, whereby the latter is able to take up bending loads.

Because of relative movement of blade rows, the pressure distributions on the blade and the flow field in the cascade vary periodically.