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:
Mar. 08, 1988
Filed:
Nov. 21, 1986
SKF Linearsysteme GmbH, Schweinfurt, DE;
Abstract
A linear ball bearing for a carriage in a machine tool has a support with a pair of raceways which oppose a corresponding pair of raceways formed in the carriage. Two endless rows of balls are arranged to circulate in adjacent planes, with the loaded balls rolling between the opposing raceways. One or two rails are fastened to the support for guiding the loaded balls outwardly of the support. The loaded balls of one row mesh in the interstices of the loaded balls of the other row. Each rail has a guiding web for laterally guiding the loaded balls and at least one retaining web for partly encompassing the loaded balls. The longitudinal gaps between the rail and the support have widths less than the ball diameter, thereby blocking the balls from falling out of the support when the bearing is disassembled.