公开(公告)号：US20240271660A1

公开(公告)日：2024-08-15

申请号：US18566783

申请日：2022-03-23

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Toshimichi TANAKA ,  Tamotsu IWATA ,  Kazuki YAMADA ,  Yasuhiro OTSUJI ,  Shunya YAMAZAKI

IPC: F16C29/06

CPC classification number: F16C29/0657 ,  F16C29/0609

Abstract: In a linear motion guide unit, a raceway groove formed in a casing of a slider includes a first raceway surface extending along the length direction of the slider and a second raceway surface facing the first raceway surface and extending along the length direction of the slider. The second raceway surface includes a first portion including a center portion in a length direction of the casing, and a second portion including end portions in the length direction of the casing and having a wall surface shape different from a wall surface shape of the first portion. In the first portion, the first raceway surface and the second raceway surface define a symmetric Gothic arch groove, and in the second portion, the second raceway surface has a surface recessed from a position symmetric to the first raceway surface.