| 主权项 |
1. An apparatus comprising:
a first panel defining a first hole; a second panel spaced apart from the first panel and defining a second hole; a seal assembly that extends from the first panel to the second panel, and includes a first wall that defines a passageway from the first hole to the second hole, and defines a first groove into which the first panel extends to form a first seal around the first hole and defines a second groove into which the second panel extends to form a second seal around the second hole; and a rotatable shaft extending axially through the first hole, the passageway, and the second hole; wherein the seal assembly includes two or more bushings disposed at least partially within the passageway and through which the shaft extends in sealing contact with the two or more bushings, a bearing support is disposed about the two or more bushings and extends radially to the first wall such that the bearing support, the two or more bushings, and the shaft cooperate to obstruct the passageway and minimize communication from the first hole to the second hole; wherein a first bushing of the two or more bushings is disposed in a proximal side of the bearing support and a second bushing of the two or more bushings is disposed in a distal side of the bearing support spaced apart from the first panel and cooperating with the proximal side to define a closed chamber within the bearing support; and a plate defining a plate opening fastened to the second panel with the plate opening aligned with the second hole and the passageway such that the plate is disposed about the shaft and directly engages the bearing support. |
