Journal cross of a universal joint
AssigneeAktiebolaget Skf
InventorChristoph Braun
Life of this patent
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Abstract
A journal cross of a universal joint includes a base body from which four journals extend outwardly, each journal of the four journals having a cylindrical section and an outer diameter and a length in an axial direction of the journal. The four journals are formed as tubular structures, an inner diameter of each of the tubular structures is at least 67% of the outer diameter of each of the tubular structures, the journal cross is formed as a one-piece component from which the four journals as well as the transitions between the four journals are also formed, and the four journals merge in a common cavity which is formed in an interior of the journal cross.
Claims13
A journal cross of a universal joint comprising:
- a base body from which four journals extend outwardly, each journal of the four journals having a cylindrical section and an outer diameter and a length in an axial direction of the journal,
- wherein the four journals are formed as tubular structures,
- wherein an inner diameter of each of the tubular structures is at least 67% of the outer diameter of each of the tubular structures,
- wherein the outer diameter and the inner diameter for each journal are centered about a common axis,
- wherein the journal cross is formed as a one-piece component from which the four journals as well as the transitions between the four journals are also formed,
- wherein the four journals merge in a common cavity which is formed in an interior of the journal cross, and
- wherein the interior of at least one of the tubular structures is filled with a metal foam.
A journal cross for a universal joint comprising:
- a base body having a hollow interior;
- and
- first, second, third and fourth journals integrally formed with and extending outwardly from the base body, each of the first, second, third and fourth journals including a hollow cylindrical portion having an interior, an axial length, an outer diameter and an inner diameter, the inner diameter being at least 67% of the outer diameter,
- wherein the outer diameter and the inner diameter for each journal are centered about a common axis,
- wherein the hollow interior of the base body communicates with the interior of each of the first, second, third and fourth journals, and
- wherein the interior of at least one of the tubular structures is filled with a metal foam.
Dependencies are inferred from the claim text.