Sealing-modular construction
AssigneeZahnradfabrik Friedrichshafen AG
InventorJosef R. Katzensteiner
Life of this patent
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Abstract
The invention concerns a sealing arrangement in modular construction. In order to make the sealing arrangement (1) capable of fording, there is an internal sealing set (5) consisting of a radial shaft sealing ring (6) having two spring-loaded sealing lips (7, 8). The proposed sealing arrangement is specially adequate for use in axles of vehicles employed in agriculture and construction which in practical use are exposed to the most unfavorable conditions.
Claims5
A sealing arrangement (1) of a modular construction having an internal annular housing (2) and an external annular housing (3) which are rotatable relatively to one other, both said internal (2) and said external annular housings (3) having a substantially U-shaped cross-section, an internal sealing set (5) and an external sealing set (13) each being supported by one of said internal and external annular housings (2, 3) and each sealing set (5, 13) having at least one sealing lip (7, 14) closely abutting against an axially extending portion (10, 17) of the other of said internal and external annular housings (2, 3),
- wherein said external annular housing (3) has a radially inwardly extending web (4) and said internal sealing set (5) comprising a radial shaft sealing ring (6) having two spring-loaded sealing lips (7, 8), and one of said two spring-loaded sealing lips (7, 8) is situated on each side of said radially inwardly extending web (4), and
- said external annular housing (3) includes a radially inwardly extending flange (18), and a radially inward edge (19) of said flange (18) and an exterior portion of a ring (20) supported by said internal housing (2) forming a labyrinth (21) therebetween.
Dependencies are inferred from the claim text.