Gear, deceleration device, robot, and moving object
US11014155B2 · kind B2 · utility
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1References
12Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jul 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gear includes a sintered body, in which Fe is contained as a principal component, Ni is contained in a proportion of 2 mass % or more and 20 mass % or less, Si is contained in a proportion of 0.3 mass % or more and 5.0 mass % or less, C is contained in a proportion of 0.005 mass % or more and 0.3 mass % or less, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, that is contained in a proportion of 0.01 mass % or more and 0.7 mass % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.