Linear motion assembly, improved wiper and scraper assembly therefor and methods of assembly thereof
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United States of America Patent
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Oct 10, 2017
Grant Date -
Aug 20, 2015
app pub date -
Feb 20, 2015
filing date -
Feb 20, 2014
priority date (Note) -
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Abstract
A wiper and scraper assembly for a linear motion assembly has a wiper and a scraper constructed from separate pieces of material. The wiper has a width extending between opposite sides with an opening extending through the opposite sides, with a first helical thread of the wiper being received in an external groove of a screw of the linear motion assembly. The scraper is disposed in the opening of the wiper, and has a second helical thread received in the external groove of the screw. The wiper has at least one lubrication return plow extending into one of its opposite sides, with the lubrication return plow facing axially inwardly into a nut of the linear motion assembly. The wiper has at least one debris ejection plow formed in the first helical thread, with the debris ejection plow facing axially outwardly from the ball nut.
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