METHOD FOR PULSE ROLLING OF RACEWAY OF THRUST BALL BEARING RACE Russian patent published in 2014 - IPC B24B39/00 B21H1/12 

FIELD: machine building.

SUBSTANCE: mandrel in the form of a hollow arbour is used, it is fitted with deforming elements in the form of balls set in the holes evenly provided at the end face of the hollow arbour. The mandrel is imparted with a periodical pulse load by means of a pulse load hydraulic cylinder in which a striker and a waveguide are installed. A workpiece is fixed at a bearing flange set so that to be able of rotating in respect to the longitudinal arbour axis. Rotational movement is imparted to the workpiece by means of the stem of the static load hydraulic cylinder having screw-shaped splines, being placed in the hollow arbour and passing in the spline hole of the said bearing flange. A helical coil compression spring is installed between the end face of the hollow arbour and the bearing flange.

EFFECT: expanded manufacturing capabilities, increased depth of the strengthened layer and reduced height of microroughnesses on the surface.

9 dwg, 1 ex