Societe Nouvelle De Roulements

Gerard Druge

Jean Beauchet

Roger Troccaz

Device for rolling rolling-contact bearing races from a blank by means of a die and shaping wheels comprising an inner roller for obtaining the internal profile of the race in the die from which it is separated to permit a possible extrusion of the excess material of said blank, and an outer wheel for shaping part of the external profile of the race against the action of the inner roller, said die being divided in the axial direction into two separable sections disposed on either side of said outer wheel in a die support and constituting a cavity of which the profile is designed for shaping the portions of the outer profile of the race which are adjacent to those shaped by said roller, the two die sections being fitted for free rotation in said die support.

Bearing race rolling device

An internal finish-grinding machine of the type comprising a frame carrying a rotatable grinding wheel and also supporting an axially movable table which itself carries a rotatable support for a workpiece has the table pivotally mounted on a single horizontal spindle which also forms a guide rail along which the table is axially movable. The spindle extends over a major part of the length of the grinder to give the table widely based support and the spindle is situated in a substantially vertical plane containing the axis of rotation of the workpiece support. The spindle is mounted in the lower part of the machine frame in order to maximize the distance between the axis of the spindle and the axis of rotation of the workpiece support. This ensures that there is a minimum deviation in the shape of the finish-ground workpiece brought about by wear of the periphery of the grinding wheel.

Growing community of inventors

Cran Gevrier, France

Gerard Druge