Rolling-element bearing unit
AssigneeSchaeffler Technologies AG & Co. KG
InventorChristoph Marquardt
Life of this patent
Estimating the term…
Abstract
A roller bearing unit for rail vehicles, having an inner bearing ring, an outer bearing ring, rolling elements arranged between the bearing rings, and at least one retainer element. The inner bearing ring and the retainer element are configured to be arranged on an axle. The retainer element is arranged radially between an axial end of the inner bearing ring and the axle, and radially between a contact part lying against the end face of the inner bearing ring, and the axle. The retainer element has at least one sealing element sealing the inner bearing ring.
Claims20
A roller bearing unit for rail vehicles, comprising an inner bearing ring, an outer bearing ring, bearing elements arranged between the bearing rings and a retaining element, wherein the inner bearing ring and the retaining element are arranged on an axle and the retaining element is arranged radially between an axial end of the inner bearing ring and the axle and radially between a contact part axially outboard from the inner bearing ring and contacting an end face of the inner bearing ring and the axle, wherein a sealing element is attached to the retaining element.
A roller bearing unit comprising:
- an inner bearing ring disposed about an axis, including an axial end and configured to be arranged on a rotatable axle;
- an outer bearing ring about the axis and radially outboard from the inner bearing ring;
- a plurality of roller elements radially between the inner bearing ring and the outer bearing ring;
- a contact part axially outboard from the inner bearing ring and having an end face contacting the axial end of the inner bearing ring at an interface;
- and
- a retaining element radially inward from and radially aligned with the interface, the retaining element having an outer surface contacting both the inner ring and the contact part, the outer surface having a sealing element sealing the interface and configured to inhibit liquid from passing radially inward of the interface.
A roller bearing comprising:
- an inner bearing ring disposed about an axis and having an axial end;
- an outer bearing ring disposed about the axis;
- a plurality of roller elements radially between the inner bearing ring and the outer bearing ring;
- a contact element axially outboard from the inner bearing ring and contacting the axial end of the inner bearing ring at a contact interface;
- and
- a retaining element radially inward from and radially aligned with the axial end of the inner bearing, the retaining element having a plurality of projections fitted into a corresponding plurality of contours on an inner surface of the inner bearing to connect the retaining element to the inner bearing, the retaining element further including a seal sealing an inner portion of the axial end at the contact interface to inhibit liquid from passing radially inward of the axial end.
Dependencies are inferred from the claim text.