초록 ▼

Reusable seal assemblies for heavy duty truck or semi-trailer wheels and axle assemblies. The reusable seal assemblies have an outer metal hub engaging shell formed with an outer generally axial surface which forms a clearance fit with the corresponding seal-receiving surface of the hub. The seals f

Reusable seal assemblies for heavy duty truck or semi-trailer wheels and axle assemblies. The reusable seal assemblies have an outer metal hub engaging shell formed with an outer generally axial surface which forms a clearance fit with the corresponding seal-receiving surface of the hub. The seals further have an axle engaging inner sheet metal shell formed with an inner surface which forms a clearance fit with the axle spindle. Each of the inner and outer shells are formed with annular recesses. These recesses are proportioned to receive square-cut static sealing rings. In one embodiment the annular recess formed in the outer shell may be provided with a radial inner portion which is tapered with respect to the adjacent surface of the hub, so that when an elastomer seal is received within the annular recess, the compression of the static seal between the recess and the hub causes the seal assembly to be biased inwardly into a seated position within the hub. In another embodiment, the annular recess formed in the inner shell is tapered.

대표청구항 ▼

An improved reusable axle seal assembly for a wheel and axle assembly having a wheel bearing in which the wheel hub is formed with an inwardly opening seal-receiving axial surface terminating in an annular seal stop ledge or seat, and in which the axle spindle is similarly formed with an axially ext

An improved reusable axle seal assembly for a wheel and axle assembly having a wheel bearing in which the wheel hub is formed with an inwardly opening seal-receiving axial surface terminating in an annular seal stop ledge or seat, and in which the axle spindle is similarly formed with an axially extending seal engaging surface in inwardly spaced relation to the corresponding surface of the hub, comprising: an outer metal hub engaging shell having an outer generally axial surface forming a clearance fit with the corresponding hub seal-receiving surface, an axle supported inner sheet metal shell having an inner surface which also forms a clearance fit with the spindle seal engaging surface, said inner shell having radially outwardly turned ends and having an axial length less than that of said outer shell, a sealing elastomer mounted on said inner shell between said outwardly turned ends and having an operable lip positioned in running engagement with an inside surface of said outer shell, said outer shell having means therein defining an outwardly opening elastomer ring-receiving recess positioned at a region axially inwardly of the region of running engagement of said lip with said inside surface thereof, said outer ring recess being adapted to receive a first annular elastomer static seal thereon for engagement with the seal-receiving surface of said hub, and said inner shell having means defining an annular inwardly opening seal-receiving recess between said ends adopted to receive a second elastomer static seal between said inner shell and said spindle seal engaging surface.