Ball nut and screw assembly with preload retaining ball return tube clamp
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 1996
Grant Date -
N/A
app pub date -
Dec 5, 1994
filing date -
Dec 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball nut and screw assembly has a ball screw mounting a nut assembly comprising a pair of ball nuts with the respective grooves of the screw and nut defining a pair of ball train accommodating axially spaced helical raceways. At least one preloading member is mounted between the nuts for imposing a preload on the raceways. External ball return tubes for each of the nuts communicate with opposite ends of each of the raceways for recirculating balls from one end of each raceway to the other. A unitary ball return tube clamp plate extends across the preloading member to clamp each of said ball return tubes to their respective nuts and fasteners extend between each of the nuts and the ends of the clamp plate for securing the return tubes in position while permitting the clamp plate to retain the nuts in preloaded condition.
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