Gear, deceleration device, robot, and moving object
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United States of America Patent
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May 25, 2021
Grant Date -
Jan 11, 2018
app pub date -
Jun 29, 2017
filing date -
Jul 6, 2016
priority date (Note) -
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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.
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