| 摘要 |
A sealing ring comprising a sealing sleeve that is made of a polymeric material and is essentially L-shaped. A fastening region extends essentially in a radial direction and a sealing region extends essentially in an axial direction. The sealing region surrounds, in sealing manner, a surface of a machine element to be sealed by exerting radial tension. The sealing region has, on the side facing the surface, at least one back-feeding device for conveying a medium to be sealed in the direction of the space to be sealed off. The back-feeding device has a profile with a volumetric delivery that decreases from the space to be sealed off in the direction of the surroundings.
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