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US 5,494,354 AGranted
Seal device for a linear guide
AssigneeNsk Ltd.
InventorToru Tsukada
Life of this patent
Estimating the term…
Abstract
A linear guide provides a guide rail, rolling elements, a slider, and a seal device secured to the slider to close the gap between the inner surface of the slider and the outer surface of the guide rail, the seal device has a seal lip which is made of a rubber or synthetic resin, containing the lubricant. When the slider is mounted on the guide rail, the seal lip contacts with the outer surface of the guide rail to close the gap between the inner surface of the slider and the outer surface of the guide rail. The lubricant contained in the seal lip gradually oozes out to the drag surfaces of the linear guide.
Claims9
A linear guide comprising:
- a guide rail having a first rolling groove which is extended axially;
- a plurality of rolling elements;
- a slider including a second rolling groove confronted with said first rolling groove, a returning path in parallel with said second rolling groove and an arcuate path communicating said second rolling groove with said returning path, and said slider being moved on said guide rail through said rolling elements rolling in said second rolling groove;
- and
- a seal device secured to said slider for closing a gap between an inner surface of said slider and an outer surface of said guide rail,
- wherein said seal device includes a seal lip made of a lubricant-contained material selected from a rubber and synthetic resin, and said seal lip contacts with said outer surface of said guide rail to close said gap between said inner surface of said slider and said outer surface of said guide rail.
3 more elements
Dependencies are inferred from the claim text.