Ball joint
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United States of America Patent
Stats
-
Feb 26, 1991
Grant Date -
N/A
app pub date -
May 23, 1989
filing date -
May 24, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball joint includes a pair of generally hemispheric head members including facing surfaces. A bearing member is disposed between the facing surfaces. One of the head members is connected to a ball stud, the other includes a shank hole through which the ball stud passes. Both head members are enclosed in a ball seat which is deformed into conformity with a generally spherical outer surface of the combined first and second head members by a socket that is formed about them. An elastic member between the socket and the ball seat applies an axial force to said first and second head members, whereby a substantial preload on the ball joint permits take-up of wear during use.
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