US 12,247,629 B2
Cup assembly for a universal joint bearing
Helmut Hauck, Euerbach (DE); and Hubert Herbst, Gädheim (DE)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Nov. 15, 2021, as Appl. No. 17/526,096.
Claims priority of application No. 102020130310.6 (DE), filed on Nov. 17, 2020.
Prior Publication US 2022/0154777 A1, May 19, 2022
Int. Cl. F16D 3/38 (2006.01); F16C 33/78 (2006.01)
CPC F16D 3/385 (2013.01) [F16C 33/7866 (2013.01); F16D 2250/0084 (2013.01); F16D 2300/08 (2013.01); F16D 2300/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cup assembly for a pin of a universal joint bearing, comprising:
a cup,
a first seal ring attached to the cup, and
a second seal ring,
wherein the first seal ring includes an elastic element and a spring element configured to preload the elastic element toward the pin,
wherein the second seal ring includes a non-elastomeric seal section configured to sealingly interact with the pin without an intervening body of elastomeric material,
wherein the second seal ring is connected to the cup,
wherein the first seal ring includes a metal ring that is substantially S-shaped in an axial cross-section and that directly contacts the cup and that has a radially inner end and a radially outer end, and
wherein the elastic element covers the radially inner end and/or the radially outer end of the metal ring.