Title:
SEAL STRUCTURE OF CONSTANT SPEED UNIVERSAL JOINT, AND CONSTANT SPEED UNIVERSAL JOINT HAVING THIS SEAL STRUCTURE
Document Type and Number:
Japanese Patent JP2023161804
Kind Code:
A
Abstract:
To prevent a situation in which grease within a joint is leaked to the outside of the joint by making a boot of the constant speed universal joint repeatedly bent and stretched.SOLUTION: A seal structure 30 is constituted to be capable of sealing a space between an outside joint member 15 and a part 26, which is to be attached to the outside joint member 15 by attachment of a boot band 23, of a boot 22. A circulation path 33 (34), which enables grease circulation toward an in-bellows space 25a from at least an inside space 31a of an annular groove 31, is provided between the outside joint member 15 and the boot 22.SELECTED DRAWING: Figure 2
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Inventors:
IZUMINO JUNICHI
KONOMOTO TAKEMI
KONDO RINA
KONOMOTO TAKEMI
KONDO RINA
Application Number:
JP2022072380A
Publication Date:
November 08, 2023
Filing Date:
April 26, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16J3/04; F16D3/84; F16J15/52
Attorney, Agent or Firm:
Kunihiko Shiromura
Takeshi Kumano
Takashi Yoshikawa
Takeshi Kumano
Takashi Yoshikawa
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