Patent ID: 7721873

Claim:
A chain link for a circulating transport chain of a machine tool, comprising: a first roller connection location configured to receive a pair of rollers, the pair of rollers determine the direction of circulation of the chain link by way of the direction in which they roll; a workpiece support disposed above the first roller connection location; a second roller connection location configured to receive a third roller, the second roller connection location spaced a distance from the first roller connection location in the direction of circulation of the chain link; and a transverse guide which guides the chain link in a direction transverse to the direction of circulation and is roller-free transverse to the direction of circulation of the chain link between the first and second roller connection locations; in which a ferromagnetic material is provided between the first and second roller connection locations when viewed in the direction of circulation, the ferromagnetic material forms a surface that is substantially parallel to a plane defined by the rollers and is spaced from this plane in such a way that a flat air gap is formed between the surface and the plane when the transport chain is in operation.