| 摘要 |
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.
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