Tooth for a toothed torque transmission assembly, and method for manufacturing such a tooth

A tooth for a toothed torque transmission assembly, the tooth comprising:

• a tooth flank designed for torque exchange with a counter flank of a meshing partner, said tooth flank comprising a periodically extending tooth flank correction including a sinusoidal corrugation having a locally extending period length T, wherein a development of the sinusoidal corrugation of the periodically extending tooth flank correction defines a center line,
• wherein the periodic tooth flank correction is overlaid with a spatial microstructure having a local maxima and/or a local minima and a shortest distance t of t<T/2 between the local maxima and/or the local minima with respect to the center line, and
• wherein a formation of the microstructure is dimensioned to generate additional structure-borne sound in running operation of the torque transmission assembly to mask a tonality in the emitted structure-borne sound.

A method for manufacturing a tooth or a toothed element, the method comprising:

• providing a tooth, which has a tooth shape based on evolvent teeth or cycloid teeth, on at least one tooth flank with a periodically extending tooth flank correction and a spatial microstructure superimposed on the tooth flank correction,
• wherein the tooth flank correction is created by a mechanical chip-removing method, in particular grinding, polishing, and/or honing.