Forged outer ring
AssigneeAktiebolaget Skf
InventorVolker Wendt
Life of this patent
Estimating the term…
Abstract
A forged outer ring of a tapered wheel bearing incudes a conical ring section having a first end and a second end, a flange section and a central ring section having a first end at the flange section and a second end at the conical ring section. An inner surface of the conical ring section is configured to form a raceway for a first set of tapered rollers. An inner diameter of the first end of the conical ring section is smaller than an inner diameter of the second end of the central ring section and a wall thickness of the second end of the conical ring section is greater than a wall thickness of the first end of the conical ring section.
Claims15
A forged outer ring for a tapered wheel bearing, the forged outer ring comprising:
- a conical ring section having a first end having a first inner diameter, a first outer diameter and a first wall thickness and having a second end having a second inner diameter, a second outer diameter and a second wall thickness,
- a flange section configured to attach the outer ring to a component, and
- a central ring section having a first end at the flange section, the first end of the central ring section having a first inner diameter, a first outer diameter and a first wall thickness, and a second end at the conical ring section, the second end of the central ring section having a second inner diameter, a second outer diameter and a second wall thickness,
- wherein an inner surface of the conical ring section is configured to form a raceway for a first set of tapered rollers,
- wherein the second inner diameter of the conical ring section is greater than the first inner diameter of the conical ring section,
- wherein the first inner diameter of the conical ring section is substantially equal to the second inner diameter of the central ring section,
- wherein the second wall thickness of the central ring section and the first wall thickness of the conical ring section are substantially equal, and
- wherein the second wall thickness of the conical ring section is greater than the first wall thickness of the conical ring section.
A method for manufacturing an outer ring of a rolling-element bearing comprising:
- providing a forged outer ring including a conical ring section having a first end having a first inner diameter, a first outer diameter and a first wall thickness and a second end having a second inner diameter, a second outer diameter and a second wall thickness and including a flange section configured to attach the outer ring to a component and including a central ring section having a first end at the flange section, the first end of the central ring section having a first inner diameter, a first outer diameter and a first wall thickness, and a second end at the conical ring section, the second end of the central ring section having a second inner diameter, a second outer diameter and a second wall thickness, and
- inserting an open die forging mold into the second end of the conical ring section to widen the conical ring section.
A forging mold for forming a forged outer bearing ring comprising:
- a cylindrical first section,
- a central section having a first end at the cylindrical first section and a conical wall extending away from the first end, and
- a substantially U-shaped receiving section at a second end of the central section configured to define a conical ring region of the outer ring and to increase a wall thickness of the outer bearing ring.
Dependencies are inferred from the claim text.