Method for hardening at least one raceway of a bearing ring for a large-diameter anti-friction bearing, comprising the following method steps: - arranging of at least two main inductors in the region of a common starting zone of the raceway , and heating of the raceway in the region of the starting zone by means of the main inductors ; - moving of the main inductors in opposite directions along the raceway , and heating of the raceway by means of the inductors in intermediate zones which are passed by the latter consecutively, until a zone is reached and heated, at which zone two main inductors which are moved in opposite directions meet with the formation of a common end zone ; - using of an additional auxiliary inductor in the region of the end zone , preheating of the raceway by way of the auxiliary inductor in the region of the end zone , and removing of the auxiliary inductor from the region of the end zone before the two main inductors approach the end zone directly; - quenching of the raceway in the region of the starting, intermediate and end zone/zones which are heated by means of the inductors , and - homogenizing of the heating of the raceway in the region of the common starting and/or end zone by way of at least one additional measure, characterized in that - the additional measure provides mechanical controlling or setting of at least one selected property of the auxiliary inductor at least during the preheating of the end zone , - the at least one selected property being the locality of the auxiliary inductor , and the additional measure providing a movement of the auxiliary inductor during the preheating, which movement takes place with at least one additional degree of freedom. - arranging of at least two main inductors in the region of a common starting zone of the raceway , and heating of the raceway in the region of the starting zone by means of the main inductors ; - moving of the main inductors in opposite directions along the raceway , and heating of the raceway by means of the inductors in intermediate zones which are passed by the latter consecutively, until a zone is reached and heated, at which zone two main inductors which are moved in opposite directions meet with the formation of a common end zone ; - using of an additional auxiliary inductor in the region of the end zone , preheating of the raceway by way of the auxiliary inductor in the region of the end zone , and removing of the auxiliary inductor from the region of the end zone before the two main inductors approach the end zone directly; - quenching of the raceway in the region of the starting, intermediate and end zone/zones which are heated by means of the inductors , and - homogenizing of the heating of the raceway in the region of the common starting and/or end zone by way of at least one additional measure, characterized in that - the additional measure provides mechanical controlling or setting of at least one selected property of the auxiliary inductor at least during the preheating of the end zone , - the at least one selected property being the locality of the auxiliary inductor , and the additional measure providing a movement of the auxiliary inductor during the preheating, which movement takes place with at least one additional degree of freedom. <EOS>