Thk Co., Ltd.

Eriko Oshima

Hiroyuki Kishi

Mitsumasa Wada

Hiroyoshi Yasutake

Shinji Aoki

Takuma Tsunoda

A motion guide device includes: a track member including a rolling member rolling surface; a movable member including a loaded rolling member rolling surface, and a rolling member return passage; a pair of cap members including a direction change passage connecting the loaded rolling member rolling surface and the rolling member return passage; and a plurality of rolling members arrayed in a rollable manner on a loaded rolling member rolling passage, the rolling member return passage, and a pair of the direction change passages, the loaded rolling member rolling passage being made up of the rolling member rolling surface and the loaded rolling member rolling surface. A gap between the rolling member and the direction change passage at a boundary portion X is formed so as to become smaller than a gap between the rolling member and the rolling member rolling surface at the boundary portion.

Motion guide device

End plate for motion guide device

The motion guide device includes a lubricant supply passage provided in at least one of a pair of cover members provided to a movable member and configured to supply lubricant to an endless circulation passage, in which the lubricant supply passage includes at least a first lubricant supply passage &#x3b1; formed to extend in a direction orthogonal to a longitudinal direction of the track member from at least one of a left side surface and a right side surface of the cover member, and a second lubricant supply passage &#x3b2; connected to the first lubricant supply passage &#x3b1;, and a passage shape in a place connected to the first lubricant supply passage &#x3b1; of the second lubricant supply passage &#x3b2; is configured as a diameter-expanded hollow section having a diameter more expanded than a passage shape of another place. Thus, a new form of a cover member is provided.

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Tokyo, Japan

Eriko Oshima