STUB SHAFT, POWER TRANSMISSION SHAFT, AND METHOD FOR MANUFACTURING A STUB SHAFT
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Aug 10, 2021
filing date -
Aug 10, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A stub shaft is configured in the following manner. A shaft portion connected to a flange portion includes a first outer diameter portion and a second outer diameter portion smaller in diameter than the first outer diameter portion. Assuming that a boundary portion refers to a portion where an imaginary line, which forms an angle of 45 degrees with a rotational axis, overlaps a surface between the flange portion and the shaft portion in a cross-section passing through the rotational axis, and an X-axis direction refers to a direction along the rotational axis, a heat hardening treatment portion is provided on the shaft portion side with respect to the boundary portion in the X-axis direction.
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