Abstract: A cassette seal having an internal ring with a cylindrical portion; a cover portion radially projecting from the cylindrical portion, and a covering portion axially projecting from the cover portion, wherein the covering portion is radially spaced from the cylindrical portion, and an external ring with axial flange, and a radial flange projecting in the internal ring direction, with a sealing body of an elastomeric material associated with the axial flange, wherein from the sealing body sealing lips are formed, wherein a first sealing lip with radial preload sealingly rests against the cylindrical portion's outer circumference, wherein a second sealing lip axially projects from the radial flange and extends in the direction of the covering portion's side facing the cylindrical portion, wherein a third sealing lip axially projects beyond the radial flange and on the outer circumference at least partly projects beyond the covering portion.

Abstract: A cassette seal having an internal ring with a cylindrical portion; a cover portion radially projecting from the cylindrical portion, and a covering portion axially projecting from the cover portion, wherein the covering portion is radially spaced from the cylindrical portion, and an external ring with axial flange, and a radial flange projecting in the internal ring direction, with a sealing body of an elastomeric material associated with the axial flange, wherein from the sealing body sealing lips are formed, wherein a first sealing lip with radial preload sealingly rests against the cylindrical portion's outer circumference, wherein a second sealing lip axially projects from the radial flange and extends in the direction of the covering portion's side facing the cylindrical portion, wherein a third sealing lip axially projects beyond the radial flange and on the outer circumference at least partly projects beyond the covering portion.