Patent ID: 8845200
Filing Date: 2014-09-30
Classification: F16C

Abstract:
1. A rolling bearing, for a dual mass flywheel in a motor vehicle, comprising: an inner bearing ring having an inner lateral surface and an outer lateral surface with a grooved raceway in the outer lateral surface; an outer bearing ring, which is arranged coaxially with respect to the inner bearing ring, having an inner lateral surface and an outer lateral surface with a grooved raceway in the inner lateral surface arranged coaxially with respect to the inner bearing ring; a multiplicity of bearing balls arranged between the inner bearing ring and the outer bearing ring and which roll in the grooved raceway formed in the outer lateral surface of the inner bearing ring and in the grooved raceway formed in the inner lateral surface of the outer bearing ring; a bearing cage holding the balls at uniform intervals from one another in a circumferential direction; a first circular-ring-shaped seal comprising a first dimensionally stable radial seal leg fastened to the outer bearing ring and a first elastic axial sealing lip that engages under the inner bearing ring; and a second circular-ring-shaped seal, wherein the first and second circular-ring-shaped seals are situated axially opposite one another, sealing off an interior space of the rolling bearing, which is filled with a rolling bearing lubricant, and wherein the first circular-ring-shaped seal is a first angle-profile-shaped lip seal, the first elastic axial sealing lip bears slidingly against the inner lateral surface of the inner bearing ring, the first angle-profile-shaped lip seal forms a first gap seal with a first axial side of the inner bearing ring and the first elastic axial sealing lip of the first angle-profile-shaped lip seal forms a first overpressure valve, such that, when an admissible gas pressure in the interior space is exceeded, the gas pressure is positively ventilated via the first gap seal and via the first elastic axial sealing lip lifting up at least partially from the inner lateral surface of the inner bearing ring.