Go on through the lofty spaces of high heaven and bear witness, where thou ridest, that there are no gods.
Seneca the Younger

The objective of this study was an analysis of the thickness of a plasticized zone that appears after surface burnishing of machine parts with a non-deformable roller of a torus contour. A function defining the plasticized zone thickness depending on burnishing parameters was determined. M. T. Huber's hypothesis of plastic deformation was used in the solution. It was found that the thickness of the plasticized zone depends principally on the pressure force and yield point, and it is insignificantly dependent on the geometrical dimensions of the workpiece and burnishing roller.