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A rolling bearing, in particular a center-free large rolling bearing, having two concentric ball races with one ball race comprising a groove open toward the other ball race, and the other ball race comprising a scraper ring engaging into the groove, wherein the scraper ring is supported at the groo

A rolling bearing, in particular a center-free large rolling bearing, having two concentric ball races with one ball race comprising a groove open toward the other ball race, and the other ball race comprising a scraper ring engaging into the groove, wherein the scraper ring is supported at the groove in the axial direction of the rolling bearing by at least two axial bearings arranged at oppositely disposed scraper ring front side and wherein the scraper ring is supported in the radial direction by at least one radial bearing which is arranged on the scraper ring jacket surface. The scraper ring is supported in the axial direction at the groove by a third axial bearing, wherein two axial bearings are arranged at the same side of the scraper ring at separate raceways offset from tone another in the axial direction of the rolling bearing.

대표청구항 ▼

1. A rolling bearing having two concentric ball races, wherein a first ball race comprises a groove open toward a second ball race and the second ball race comprises a scraper ring engaging into the groove, wherein the scraper ring is supported at the groove in an axial direction of the rolling bear

1. A rolling bearing having two concentric ball races, wherein a first ball race comprises a groove open toward a second ball race and the second ball race comprises a scraper ring engaging into the groove, wherein the scraper ring is supported at the groove in an axial direction of the rolling bearing by each of a first, second, and third axial bearing, the first and second axial bearings transversely spaced apart and arranged at oppositely disposed ends of a first front side of the scraper ring in a first raceway and a second raceway offset from one another in the axial direction and wherein the scraper ring is further supported in a radial direction of the rolling bearing by two radial bearings arranged to cover one another viewed in the radial direction in a common plane perpendicular to an axis of rotation of the rolling bearing, wherein the two radial bearings are arranged, viewed in the radial direction, between the third axial bearing and a set comprising the first and second axial bearings, and wherein each of the radial bearings is spaced apart from each of the axial bearings in the axial direction. 2. The rolling bearing in accordance with claim 1, wherein an axial offset of the two raceways of the first and second axial bearings transversely spaced apart and arranged on the first front side of the scraper ring amounts to between 10% and 200% of a roller body diameter of the first and second axial bearings. 3. The rolling bearing in accordance with claim 2, wherein the axial offset of the two raceways is between 10% and 100%. 4. The rolling bearing in accordance with claim 2, wherein the axial offset of the two raceways is between 15% to 35%. 5. The rolling bearing in accordance with claim 1, wherein the first and second axial bearings arranged axially offset on the first front side of the scraper ring each have a width which is smaller than a width of the third axial bearing arranged at an oppositely disposed front side of the scraper ring. 6. The rolling bearing in accordance with claim 1, wherein a sum of widths of the first and second axial bearings disposed on the first front side of the scraper ring approximately corresponds to a width of the third axial bearing seated at an oppositely disposed front side of the scraper ring. 7. The rolling bearing in accordance with claim 1, wherein the second axial bearing arranged at the first front side of the scraper ring covers the third axial bearing arranged at an oppositely disposed front side of the scraper ring from the first front side, viewed in the axial direction, whereas the first axial bearing seated at the same front side of the scraper ring does not have any coverage with the third axial bearing seated at the oppositely disposed front side of the scraper ring. 8. The rolling bearing in accordance with claim 1, wherein the first and second axial bearings arranged at the oppositely disposed ends of the first front side of the scraper ring are arranged offset and without coverage with respect to the third axial bearing arranged at the oppositely disposed front side of the scraper ring to the first front side of the scraper ring, wherein the third axial bearing arranged oppositely disposed the first front side of the scraper ring is positioned between the first and second axial bearings arranged at the first front side of the scraper ring. 9. The rolling bearing in accordance with claim 1, wherein the scraper ring is supported in the radial direction at the groove by two radial bearings arranged at oppositely disposed jacket surface sides of the scraper ring. 10. The rolling bearing in accordance with claim 1, wherein the scraper ring is supported at the groove by exactly two radial bearings and by exactly three axial bearings; and/or the first and second ball races are supported with respect to one another by exactly two radial bearings arranged at oppositely disposed sides and by exactly three axial bearings arranged at oppositely disposed sides; wherein the exactly three axial bearings are comprised of the first, second, and third axial bearings. 11. The rolling bearing in accordance with claim 1, wherein the rolling bearing is a center free large rolling bearing.