Gear having excellent seizing resistance

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9587288
APP PUB NO 20150038380A1
SERIAL NO

14383726

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Importance

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Abstract

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This gear has a predetermined chemical composition and has, in a surface-layer part, a texture of tempered martensite and/or tempered bainite and a steel material texture in which retained austenite exists in 1-10% by area percentage and in which a carbide is deposited in at least 5% by area percentage, and the nitrogen content at a depth of 20 μm below the surface is 2.0-6.0%. Thus, a gear that achieves even better seizing resistance in a power transmission part subjected to high rotation and high slippage and using a low-kinematic-viscosity lubricating oil is provided.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL LTD )2-4 WAKINOHAMA-KAIGANDORI 2-CHOME CHUO-KU KOBE-SHI HYOGO 651-8585

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagamatsu, Sayaka Kobe, JP 5 19
Shindo, Yosuke Kobe, JP 13 60

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