Gear for transmission and method for manufacturing the same
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United States of America Patent
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Feb 17, 2009
Grant Date -
Jan 27, 2005
app pub date -
Apr 30, 2004
filing date -
May 2, 2003
priority date (Note) -
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Abstract
A method for manufacturing a gear and a gear for a transmission, in which an outer peripheral gear part formed on an outer peripheral wall surface of a main body of a gear, an annularly-shaped concave portion annularly formed at a radial inner part on at least one axial end surface of the main body of the gear within the outer peripheral gear part thereof, a dog gear part formed on an outside peripheral wall surface at a central part formed on the annularly-shaped concave portion, and a taper part comprising an inner corn for being synchro formed on an inside peripheral wall surface formed on the annularly-shaped concave portion, are formed integrally by forging.
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