Manufacture of ball nut with internal crossover path for ball recirculation
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United States of America Patent
Stats
-
Jun 9, 1981
Grant Date -
N/A
app pub date -
Nov 7, 1979
filing date -
Nov 7, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball nut and screw assembly is provided with a molded internal return system for a train of balls drivingly interconnecting the nut and screw. A ball nut with an internal crossover is used as a master mold to produce an imprint mold which positively profiles the helical groove and the cross of the master mold. The imprint mold is positioned in a blank nut and a thermal set resin is supplied to radial openings formed in the blank nut which subsequently hardens into a plug with an internal crossover channel like that of the master mold.
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