Ball nut and screw assemblies and methods of attaching extensions or housings to the ball nuts thereof
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United States of America Patent
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-
Jan 23, 1996
Grant Date -
N/A
app pub date -
May 10, 1994
filing date -
May 10, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball nut and screw assembly with a screw having exterior helical ball carrying groove portions separated by land portions and a co-axial nut having complemental, helical interior ball carrying groove portions separated by land portions with the same lead as said screw groove and land portions has, an end attachment for the nut with a reduced diameter sleeve extending axially therefrom. The sleeve has helical exterior thread portions, of the same lead as the nut groove portions, which are of a matching configuration and are threaded into one end of the nut. The sleeve has an interior diameter which receives and passes the screw without interacting with the screw. A recirculating train of load bearing balls is accommodated within nut and screw groove portions which are axially spaced from the sleeve.
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