Antifriction bearing for longitudinal movements of a shaft
AssigneeSKF Kugellagerfabriken GmbH
InventorsArmin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst, Herbert Dobhan, Peter Horling
Life of this patent
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Abstract
The arrangement according to the invention provides a sealing ring fastened to the end ring in a manner secure against removal by pulling or twisting. This sealing ring is provided with thickened extended arms and is fastened by snapping in the thickened arm sections behind an internal radial shoulder through openings in the flange of the end ring. The opening in the flange of the end ring may be economically manufactured, as by means of axial forms or cores, and without the need for additional radial cores, within the casting mold.
Claims17
In a rolling bearing for longitudinal movements of a shaft, having closed rows of rolling elements distributed around the circumference of the bearing, an outer housing with longitudinal sections distributed over the circumference of the housing's bore, said sections bearing the loaded and unloaded raceways of each row of rolling elements, a bearing cage located in the bore of the outer housing, said cage having its ends axially protruding from the outer housing, a cast end ring mounted on each end of said bearing cage, and an elastic sealing ring fixed to the end ring, the improvement comprising a flange on each said end ring extending radially inward to cover the axial ends of said bearing cage and define the axial ends of said rolling bearing, said flange having axial directed openings extending therethrough and distributed over the circumference thereof, said rolling bearing having an internal shoulder at each axial end thereof, said sealing ring, on its side facing the axial ends of said cage, having a plurality of arms extending in an axial direction with a thickened portion on the ends thereof, each of said arms engaging an associated opening with its thickening portion snapped behind said shoulder.
A rolling bearing having an improved end seal comprising a housing, an end ring covering one end of the housing of said bearing to define the axial end of the bearing and including a radially inward directed flange, said flange having axially extending openings extending therethrough and distributed about its circumference, and an end ring seal having a plurality of axially inwardly directed arms aligned with said openings, said arms having shaped end portions passed through said openings and engageable within said bearing housing for securing said ring seal in position.
Dependencies are inferred from the claim text.