Patent ID: 11865862
Assignee: HENDRICKSON USA, L.L.C.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 9:
10. A disc brake component assembly for a heavy-duty vehicle, the disc brake assembly comprising:
a rotor including a disc segment, a flange mounting segment and a substantially cylindrical barrel segment connecting the disc segment and the flange mounting segment, the flange mounting segment having a thickness taken in an axial direction;
a plurality of circumferentially arranged openings extending through the flange mounting segment;
a flange connectable with the flange mounting segment of the rotor;
a plurality of circumferentially arranged openings extending through the flange, each of the openings in the flange being aligned with a respective one of the plurality of openings in the flange mounting segment;
a plurality of wheel studs extendable through the openings in the flange mounting segment of the rotor and through the openings in the flange; and
at least one of the wheel studs having a knurled portion and a cylindrical portion, the knurled portion extending axially for a length through an opening in the flange mounting segment of the rotor, the knurled portion engaging a surface of the opening in the flange mounting segment, the length of the knurled portion being no greater than the thickness of the flange mounting segment, the cylindrical portion being axially spaced from the knurled portion and extending axially for a length though an opening in the flange and at least partially engaging the opening in the flange via an interference fit, whereby stress in an area around the opening in the flange mounting segment of the rotor is reduced.