CONSTANT-SPEED UNIVERSAL JOINT
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United States of America Patent
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Issued Date -
Jun 15, 2023
app pub date -
Dec 8, 2022
filing date -
Dec 9, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A constant-speed universal joint includes: an outer ring; an inner ring; a plurality of balls that engages with the outer-ring ball grooves and the inner-ring ball grooves; and a holder that is interposed between an inner spherical surface of the outer ring and an outer spherical surface of the inner ring and in which a holding window for holding the plurality of balls is formed. A chamfered portion is formed in the inner ring. The chamfered portion includes a linear section portion that is formed in a linear shape in a section perpendicular to a moving locus of the center of the corresponding ball and an arc section portion that is formed in a protruding arc shape in the section perpendicular to the moving locus of the center of the corresponding ball.
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