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US 12,196,265 B2Granted
Rotating assembly, in particular for guiding a motor vehicle wheel
AssigneeNtn-Snr Roulements
InventorsAlexandre Baudu, Vincent Pourroy-Solari, Siegfried Ruhland
Life of this patent
Estimating the term…
Abstract
A motor vehicle drive wheel assembly comprising a fixed subassembly comprising two outer raceways; and, a rotating subassembly comprising a first inner race, a second inner race and two rows of balls arranged in two pitch planes PP1 and PP2. The second inner bearing race has an outer diameter, measured in a section plane perpendicular to the axis of rotation and located between the first pitch plane and the second pitch plane, at a measurement distance DM of the first pitch plane, which is greater than a given threshold value VS.
Claims20
A rotating assembly, comprising:
- an outer subassembly comprising a first annular outer raceway and a second annular outer raceway centered on a common axis of rotation;
- an inner subassembly comprising a first inner bearing race on which a first inner raceway is formed, the first inner raceway having a raceway bottom diameter DI1, and a second inner bearing race on which a second inner raceway is formed, the second inner raceway having a raceway bottom diameter DI2 larger than the raceway bottom diameter DI1 of the first inner raceway, the second inner bearing race and the first inner bearing race being fixed relative to each other;
- and
- balls forming a first row of balls capable of rolling on the first outer raceway and the first inner raceway and a second row of balls capable of rolling on the second outer raceway and the second inner raceway for guiding the outer subassembly and the inner subassembly relative to each other in rotation about the axis of rotation, the balls of the first row of balls having a diameter DC1, a first pitch plane containing the centers of the balls of the first row of balls being located at a non-zero distance L from a second pitch plane containing the centers of the balls of the second row of balls;
- wherein
- the second inner bearing race has an outer diameter, measured in a section plane perpendicular to the axis of rotation and located between the first pitch plane and the second pitch plane, at a measurement distance DM from the first pitch plane, which is greater than a given threshold value VS, where:
- {
- DM
- =
- 1.25
- ⨯
- DC
-
- 1
- 2
- VS
- =
- sup
-
- (
- 1.1
- ⨯
- DI
-
- 1
- ;
- DI
-
- 1
- +
- DC
-
- 1
- 2
- )
- .
33 more elements
Dependencies are inferred from the claim text.