US 12,078,205 B2
Motor vehicle wheel assembly
Alexandre Baudu, Annecy (FR); and Vincent Pourroy-Solari, Thones (FR)
Assigned to NTN-SNR ROULEMENTS, Annecy (FR)
Appl. No. 17/759,284
Filed by NTN-SNR ROULEMENTS, Annecy (FR)
PCT Filed Jan. 25, 2021, PCT No. PCT/EP2021/051627
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/148675, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 2000720 (FR), filed on Jan. 24, 2020.
Prior Publication US 2023/0063439 A1, Mar. 2, 2023
Int. Cl. F16C 19/18 (2006.01); B60B 27/00 (2006.01)
CPC F16C 19/186 (2013.01) [B60B 27/0042 (2013.01); F16C 19/185 (2013.01); F16C 2326/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor vehicle drive wheel assembly, comprising:
a fixed subassembly comprising a first annular outer raceway and a second annular outer raceway centered on a common axis of rotation;
a rotating subassembly, capable of rotating relative to the fixed subassembly about the axis of rotation, comprising a wheel hub comprising a flange provided with an interface for attaching a wheel rim or a brake disc, the flange having a mounting face for the wheel rim or for the brake disc axially facing in a direction of disassembly of the wheel rim or of the brake disc, the direction of disassembly being parallel to the axis of rotation, the mounting face being coplanar with an assembly reference plane, the assembly reference plane perpendicular to the axis of rotation, a transmission bowl, and at least one inner rolling bearing ring, the inner rolling bearing ring being shrunk over a shrink-fit seat of the wheel hub, the inner rolling bearing ring bearing against the transmission bowl at an annular contact interface extending at least in a radial direction with respect to the axis of rotation, the rotating subassembly further comprising a first inner raceway located opposite the first outer raceway and a second inner raceway located opposite the second outer raceway and formed on the inner rolling bearing ring; and
rolling bodies, forming a first row of rolling bodies capable of rolling on the first outer raceway and the first inner raceway and a second row of rolling bodies capable of rolling on the second outer raceway and the second inner raceway, a first pitch plane containing the centers of the rolling bodies of the first row of rolling bodies being located at a non-zero distance from a second pitch plane containing the centers of the rolling bodies of the second row of rolling bodies, in the direction of disassembly, the first row of rolling bodies and the second row of rolling bodies being located on the same outer side of a limit plane of the drive wheel assembly tangential to the rolling bodies of the second row of rolling bodies and perpendicular to the axis of rotation; wherein
the annular contact interface between the inner rolling bearing ring and the annular bearing face of the transmission bowl is positioned at least partially between the first pitch plane and the limit plane and has a maximum contact diameter that is greater than a diameter of the shrink-fit seat and less than a raceway bottom diameter of the second inner raceway.