Method for producing a gear worm which is located in particular on an armature shaft, and such a gear worm

The invention relates to a method for producing a gear worm (12) which is located in particular on an armature shaft (14) of an electromotive drive unit (10), wherein firstly a worm gear (20) having screw flanks (22) axially opposite one another on a longitudinal axis (18) is formed by means of a ro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Cettier, Daniel, De Graaff, Bernhard, Qiao, Guang, Thoene, Holger, Hertwig, Otmar, Bao, Jie, Hertweck, Volker
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a method for producing a gear worm (12) which is located in particular on an armature shaft (14) of an electromotive drive unit (10), wherein firstly a worm gear (20) having screw flanks (22) axially opposite one another on a longitudinal axis (18) is formed by means of a rolling tool, and subsequently a groove structure (24) which is concentric about the longitudinal axis (18) is formed on the screw flanks (22) by means of an additional process step. The invention also relates to a gear worm (12) produced according to the method according to the invention, and to a transmission drive unit (10) containing such a gear worm (12).