The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2003
Filed:
Dec. 27, 2000
NSK Ltd., Tokyo, JP;
Abstract
In the present linear guide bearing, the center of curvature O′ of a ball reversing passage is shifted to a return side ball passage side by a given amount m when compared with the center of curvature, O′ of a conventional guide bearing. Due to this, not only the radius of curvature of a concave-arc-shaped groove formed in each end cap is reduced by a given amount m but also the concave-arc-shaped groove is shifted to the return side ball passage side by a given amount m, when compared with the conventional guide bearing. Thus, an angle &agr; formed between a line connecting the leading end of a tongue portion to the center of curvature O′ of a ball reversing passage and the moving-direction end face of a bearing main body , can be reduced significantly when compared with the conventional bearing.