Patent Number: 6,253,453

Title: Methods of manufacturing a linear guide device and a ball screw device

Abstract: In a guide rail or slider body manufacturing method for a linear guide device providing a guide rail and a slider mounted on the guide rail, mounting reference surfaces formed on the guide rail or slider body and/or the surfaces of ball rolling grooves formed therein are finished by grinding, and are subjected to rust-proofing surface treatment with protecting members fitted to the surfaces thus finished. Similarly in a method of manufacturing a ball screw device providing a screw shaft and a ball screw nut engaged with the screw shaft, the surfaces of ball rolling grooves formed in the screw shaft and the ball screw nut are finished by grinding, and are subjected to rust-proofing surface treatment with protecting members fitted to the surfaces thus finished. In the methods, the rust-proofing surface treatment is carried out for the surfaces except those which should not be covered with such a rust-proofing film layer for their precision.

Inventors: Tsukada; Toru (Gunma, JP)

Assignee: NSK LTD

International Classification: B23P 15/00 (20060101); F16C 29/06 (20060101); F16C 29/00 (20060101); B23P 013/00 ()

Expiration Date: 07/03/2018