Jtekt Corporation

Takehito Tomita

Yuji Muragishi

Jun Hamakita

Yasuaki Tsurumi

Ikuo Kushiro

Daisuke Yamada

Koji Sawamura

A reduction gear coupled to an electric motor includes: a first bearing that rotatably supports a first end portion of a worm shaft such that the worm shaft is allowed to oscillate in an oscillation direction about the first end portion; and a first elastic member that elastically urges a second bearing in such a direction that an axis-to-axis distance between the worm shaft and the worm wheel reduces. The first end portion and an output shaft of the electric motor are coupled by a joint. A second elastic member located between the joint and the first end portion elastically urges the worm shaft toward a second end portion and applies a preload on the first bearing. An outer ring of the first bearing is interposed in an axial direction by the third elastic member and the fourth elastic member.

Growing community of inventors

Okazaki, Japan

Takehito Tomita