Jtekt Corporation

Shunji Inoue

Hirokazu Kondo

Masayoshi Asakura

Hirotsune Suzuki

Kiyoshi Uchiyama

A steering apparatus includes a steering shaft; a steered shaft; a ball screw mechanism; and a motor. A plurality of rolling elements includes large-diameter rolling elements and small-diameter rolling elements. A prescribed diameter difference is set such that when a magnitude of power transmitted between a first screw groove and a second screw groove is a prescribed value or less, only the large-diameter rolling elements transmit the power between the first screw groove and the second screw groove, and when the magnitude of the power transmitted between the first screw groove and the second screw groove exceeds the prescribed value, both the large-diameter rolling elements and the small-diameter rolling elements transmit the power.

Growing community of inventors

Toyokawa, Japan

Shunji Inoue