US 12,736,087 B2Granted

Universal joint cross

AssigneeAktiebolaget Skf

InventorsNorbert Huhn, Gianni Alvise Cognolato, Stefanie Seufert, Pietro Fabio Picatto, Baptiste Vidil, Daniele Duch, Juergen Barthelme

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Abstract

A universal joint cross includes a trunnion, a cup, rolling elements between the cup and the trunnion, and a seal. The seal seals a seals a space between the cup and the trunnion and includes an elastomeric member, wherein a first rigid part of the seal has, in an axial section, a first arm and at least one second arm, which are connected by an intermediate section of the first rigid part. The first arm and the second arm extend from the intermediate section toward the rolling elements and the second arm abuts against the trunnion. The intermediate section includes a first region, which contacts at least one projection of a face surface of the elastomeric member or which provides a gap seal or a labyrinth seal with the at least one projection, and at least a second region, which contacts the face surface of the elastomeric member.

Claims11

Dependent claims

A universal joint cross comprising:

a trunnion;
a cup;
a plurality of rolling elements disposed between the cup and the trunnion;
and
a seal configured to seal a space between the cup and the trunnion and including an elastomeric member and a first rigid part, the elastomeric member having a face surface and at least one projection extending from the face surface, the first rigid part including a first arm, a second arm, and an intermediate section connecting the first arm and the second arm, the first arm and the second arm each extending from the intermediate section toward the rolling elements, the second arm abutting against the trunnion, the intermediate section including a first region, which is in contact with the least one projection of the elastomeric member or which defines a gap seal or a labyrinth seal with the at least one projection, and a second region which is in contact with the face surface of the elastomeric member.

2 more elements

Dependencies are inferred from the claim text.