Title:
LINEAR MOTION GUIDE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/154046
Kind Code:
A1
Abstract:
Provided is a linear motion guide device having a slider with a long lifespan. This linear motion guide device comprises a guide rail, a plurality of rolling bodies, and a slider. A material of a slider body (11) is an alloy steel comprising, 0.1 mass% or more but less than 0.3 mass% of C, 0.5-1.5 mass% of Cr, and 0.1-0.4 mass% of Si, the balance being Fe and unavoidable impurities. The amount of residual austenite in a surface layer (14F) of a slider-side rolling groove (14) which has been subjected to a carburizing heat treatment is 15-45 vol%. The surface hardness of the slider-side rolling groove (14) is Hv650 or more.
Inventors:
OHKUBO TSUTOMU (JP)
Application Number:
PCT/JP2022/000926
Publication Date:
July 21, 2022
Filing Date:
January 13, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C29/06; F16C33/62; F16C33/64
Foreign References:
| JP2015203464A | 2015-11-16 | |||
| JPH0886313A | 1996-04-02 | |||
| JP2004060754A | 2004-02-26 | |||
| JP2017110751A | 2017-06-22 | |||
| JPS6224499B2 | 1987-05-28 | |||
| JPH0234766A | 1990-02-05 | |||
| JP2017110751A | 2017-06-22 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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