BEARING ASSEMBLY HAVING LABYRINTH SEAL WITH PUMPING ACTION

A bearing assembly includes a housing having an interior cavity, an opening, and an inward facing seal mounting surface. The assembly includes a bearing and a shaft mounted in the bearing for rotation about a central axis. The assembly includes a seal positioned axially between the interior cavity a...

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Bibliographische Detailangaben
1. Verfasser: Conley Paul G
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A bearing assembly includes a housing having an interior cavity, an opening, and an inward facing seal mounting surface. The assembly includes a bearing and a shaft mounted in the bearing for rotation about a central axis. The assembly includes a seal positioned axially between the interior cavity and the exterior of the housing to inhibit contaminants from entering the housing and damaging the bearing. The seal has a bearing side, an opening side, and a gap surface facing a corresponding surface that is either an outward facing surface of the shaft or thee inward facing seal mounting surface of the housing. The gap surface is spaced from the corresponding surface by a clearance gap. The width of the clearance gap increases from the bearing side to the opening side to direct fluid in the clearance gap away from the interior cavity as the shaft rotates.