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Title:
ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2022/230979
Kind Code:
A1
Abstract:
Provided is a rolling bearing that exhibits an improved resistance to hydrogen embrittlement. The rolling bearing is provided with a bearing component. The bearing component is made of steel and has a surface layer region, which is the region to a distance of 20 µm from the surface. The steel contains 0.70-1.10 mass% carbon, 0.15-0.35 mass% silicon, 0.30-0.60 mass% manganese, 1.30-1.60 mass% chromium, not more than 0.50 mass% vanadium, and not more than 0.50 mass% molybdenum, with the balance being iron and unavoidable impurities.

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Inventors:
YAMADA YUUSUKE (JP)
UENO MASANORI (JP)
YAMADA MASAHIRO (JP)
SATO MIYU (JP)
MIWA NORIAKI (JP)
OHKI CHIKARA (JP)
NAKATOCHI NAOKI (JP)
YAMAMOTO NAOTA (JP)
Application Number:
PCT/JP2022/019295
Publication Date:
November 03, 2022
Filing Date:
April 28, 2022
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C21D9/40; C21D1/06; C22C38/00; C22C38/24; C23C8/26; F16C19/02; F16C19/22; F16C19/36; F16C23/08; F16C33/32; F16C33/34; F16C33/62
Domestic Patent References:
WO2019039610A12019-02-28
WO2010067872A12010-06-17
Foreign References:
JP2019108576A2019-07-04
JP2009127110A2009-06-11
JPH1151065A1999-02-23
JPH07505679A1995-06-22
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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