SEAL STRUCTURES
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United States of America Patent
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Issued Date -
Dec 29, 2022
app pub date -
Jun 28, 2022
filing date -
Jun 28, 2022
priority date (Note) -
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Abstract
Disclosed herein is a threaded bottom bracket comprising: an internal sleeve, a ball bearing, wherein an inner race of the ball bearing is an extended inner race, a cup fit to concentrically hold the ball bearing, wherein the cup is coupled to the internal sleeve, a labyrinth, the labyrinth coupled to the ball bearing and fit to prevent water and debris from entering the ball bearing, wherein the labyrinth and the cup form a path, and a rotary seal disposed between the ball bearing and the labyrinth, the rotary seal having an external seal that seals against the extended inner race.
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