Sealing device for bearings, especially roll bearings
AssigneeStefa Industri Aktiebolag
InventorsG. Rune Klinteberg, N. A. Bertil Johansson, B. Lennart Johansson, Christer H. Dahlgren
Life of this patent
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Abstract
A sealing device for bearings in which two sealing areas are provided in series, each comprising an elastomeric sealing lip, the lips being part of a single ring and contacting cylindrical surfaces of a surrounding housing, the sealing ring being attached to a metallic liner.
Claims6
Sealing device for bearings especially roll bearings, in which two sealing places (15-20', 16-21") are provided in series, each comprising a sealing lip (15, 16) made from an elastomer, and arranged on one single ring (13) made from the same elastomer for contacting a cylindrical surface at the sealing places, said sealing ring (13) being connected to a metallic liner (18), characterized thereby, that the sealing lips (15, 16) are arranged to extend from one single ringshaped part (13) but at different radial distances from the axis of the sealing device, the sealing device being covered by a housing comprising two parts (20, 21), one of said parts (20) having a Z-shaped profile and the other one (21) having an L-shaped profile, so that the at least substantially cylindrical outermost parts of the two last mentioned parts (20, 21) tightly contact each other, and the edge of the one (20) of them being folded over a cavetto shaped part of the other one (21), two cylindrical portions of the housing parts forming contact surfaces for respective ones of the two sealing lips (15, 16).
Dependencies are inferred from the claim text.