Wellenkomponente, Verfahren zur Herstellung einer Wellenkomponente, Verfahren zur Herstellung einer Lagerbahnkomponente und Lagerbahnkomponente

Details

Veröffentlichungs-Nr.

EP4756245

Anmeldetag

26. Juli 2024

Veröffentlichung

6. Februar 2025

Rechtsraum

EP

Abstract

A shaft component for manufacture of a bearing raceway component including a power transmission portion having teeth by carburizing or carbonitriding includes a columnar or cylindrical shaft member. The shaft member has a central axis. The shaft member includes a first portion on a first axial side, and a second portion on a second axial side of the first portion. The first portion is integrated with the second portion. The first portion is made of a first steel material as a raw material. The second portion is made of a second steel material as a raw material. The first portion includes a portion serving as a raceway. The second portion includes a portion serving as the teeth. An alloy composition of the first steel material is different from an alloy composition of the second steel material. A third portion includes a joining surface connected to the second portion on the second axial side of the first portion. A fourth portion includes a joining surface connected to the first portion on the first axial side of the second portion. A fifth portion is located in the first portion on the first axial side of the third portion. A sixth portion is located in the second portion on the second axial side of the fourth portion. A hardness of the third portion is greater than a hardness of the fifth portion. A hardness of the fourth portion is greater than a hardness of the sixth portion. The portion serving as the raceway is located in the fifth portion and is not located in the third portion.

Anmelder

Firma

JTEKT CORPORATION

Land

🇯🇵 Japan