Sealing ring and sealing arrangement, including two such sealing rings

A sealing ring for sealing an axially arranged machine element, comprising:

• a stiffening ring of a hard material;
• a supporting ring having a radial flange positioned adjacent a radial surface of the machine element so as to form a radial gap between the radial flange and the radial surface of the machine element;
• and
• a sealing sleeve of an elastomer material connected to the stiffening ring, the sealing sleeve including a sealing lip for sealing against the radial surface so as to create a sealed-off space, an inner axial leg, an outer axial leg, and a radial leg, wherein each of the inner and outer axial legs include a first end proximate to the sealed-off space and a second end distal to the sealed off space, wherein the outer axial leg is connected to the stiffening ring only at the first end, wherein the radial leg connects the second ends of the inner and outer axial legs, and wherein a first surface of the radial leg distal to the sealed-off space and an outer circumferential surface of the outer axial leg are associated non-adhesively with the supporting ring.

A sealing arrangement for sealing an axially arranged machine element, comprising:

• a first sealing ring, including:
• a first stiffening ring of hard material;
• a first supporting ring having a first radial flange positioned adjacent a first radial surface of the machine element so as to form a first radial gap between the first radial flange and the surface of the machine element;
• and
• a first sealing sleeve of elastomer material connected to the first stiffening ring, the first sealing sleeve including a first sealing lip for sealing against the radial surface so as to create a first sealed-off space, a first outer axial leg, and a first radial leg connecting the first sealing lip to the first outer axial leg, wherein the first outer axial leg includes a first outer circumferential surface and a first proximate end proximate to the first sealed-off space, the first outer axial leg being connected to the first stiffening ring only at the first proximate end, wherein the first radial leg has a first distal surface distal to the sealed-off space, and wherein the first distal surface and the first outer circumferential surface are associated non-adhesively with the first supporting ring;
• and
• a second sealing ring including:
• a second supporting ring of a hard material and having a second radial flange and a second axial flange, and
• a second sealing sleeve of elastomer material having a second sealing lip for sealing a second sealed-off space disposed axially adjacently to the first sealed off space, the second sealing sleeve being connected to the second supporting ring, wherein the first sealing ring and the second sealing ring are joined to form a preassemblable unit.