Method for producing a winding for a stator of an electric rotating machine, stator, method for producing the stator, and electric rotating machine

A method for producing a stator of an electric rotating machine having providing a stator body having a plurality of stator teeth arranged along a circumferential direction and grooves formed between the stator teeth, and a winding produced by winding a plurality of conductors on a having a wedge shape profile first fin along a first winding direction so that the conductors loop around the first fin, and removing the first, fin, arranging conductor sections of the conductors in the grooves to form at least a portion of the winding of the stator, wherein at least one conductor section of the conductors is arranged in a respective groove such that the conductors, deviating from a winding direction extending substantially in the circumferential direction meander in a radial direction in a direction substantially perpendicular to the circumferential direction and wrap around a group of stator teeth with a respective wrap formed thereby, bending the plurality of conductors along a second winding direction opposite to the first winding direction on a second fin after reaching a predetermined number of loops around the first fin such that the plurality of conductors partially wrap around the second fin with connecting transition sections, winding the plurality of conductors on a third fin along the first winding direction so that the conductors loop around the third fin, and removing the fins, wherein the first fin and the third fin each have a cross-sectional shape having a first wrap side and a second wrap side, wherein the first wrap side is longer than the second wrap side, and the first wrap side is opposite the second wrap side, wherein opposite side surfaces of the first fin and the third fin extend between the first wrap side and the second wrap side and converge towards each other in a direction towards the second wrap side.