Outer joint member of a constant velocity universal joint
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United States of America Patent
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-
Sep 15, 2020
Grant Date -
Jun 28, 2018
app pub date -
Jun 1, 2016
filing date -
Jun 11, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An outer joint member of a constant velocity universal joint includes a cup section having track grooves formed in an inner periphery thereof, which are engageable with torque transmitting elements, and a shaft section formed at a bottom portion of the cup section. The cup section and the shaft section are formed as separate members, and by bringing a cup member forming the cup section and a shaft member forming the shaft section into abutment against each other at respective joining end surfaces and welding them, a hollow cavity portion is formed. The cup member has, at an axial center, a ventilation hole that communicates with the hollow cavity portion and any one of the joining end surfaces of the cup member and the joining end surface of the shaft member has a welding spatter receiving groove formed on a radially inner side thereof.
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