Title:
SEAL RING
Document Type and Number:
WIPO Patent Application WO/2023/249010
Kind Code:
A1
Abstract:
Provided is a seal ring having improved resistance when assembled into an annular groove even if the seal ring is a small-diameter PPS seal ring. This seal ring 1 is a molded article of a polyphenylene sulfide resin composition and has a joint 5 in one location. The seal ring 1 also has, on both sides of a joint-opposing part 5F, thin-walled parts 6 where the radial-direction thickness of the ring is reduced at a ring inner peripheral surface 3, the thin-walled parts having a bending elastic modulus of 10,000 Mpa or less and a bending strain exceeding 2.0%. The radial-direction thickness of the thin-walled parts is 50-70% of the radial-direction thickness of the joint-opposing part 5F.
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Inventors:
ODA SHINYA (JP)
Application Number:
PCT/JP2023/022747
Publication Date:
December 28, 2023
Filing Date:
June 20, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16J15/16; F16J15/3272
Foreign References:
| JP2004353760A | 2004-12-16 | |||
| JP2019168012A | 2019-10-03 | |||
| JP2009085391A | 2009-04-23 | |||
| JP2020051555A | 2020-04-02 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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