Kawasaki Jukogyo Kabushiki Kaisha

Nsk Corporation

Daiki Shirota

Hideyuki Imai

Kippei Matsuda

Eiji Inoue

Tomohiro Inoue

Kenichiro Tanaka

Kenji Komatsu

Masahiro Kita

A toroidal continuously variable transmission. A power roller () of the transmission includes a power roller inner ring () sandwiched between both disks (), a power roller outer ring () provided in a trunnion () and rotatably supporting the power roller inner ring (), and an inner ring hole () provided in the power roller inner ring () to extend in an axial direction of the power roller inner ring (), in which an end surface hole () communicating with an inner ring hole () is provided in an inner end surface () of the power roller inner ring (), and the end surface hole () is closed by a closing member () separate from the power roller inner ring ().

Toroidal continuously variable transmission

A toroidal continuously variable transmission includes a preload spring disposed between a rotary assembly including a first disc and a pressing device, and a driving force transmission shaft, and a thrust bearing disposed between a first member and the preload spring, the first member being one of the rotary assembly and the driving force transmission shaft. In a direction of an axis line, a gap is formed between a second member and the thrust bearing, the second member being the other of the rotary assembly and the driving force transmission shaft. A dimension of the gap in the direction of the axis line is less than a deformation amount of the preload spring in the direction of the axis line, at an elastic limit.

Growing community of inventors

Fujisawa, Japan

Daiki Shirota