Ball screw with an improved end deflector
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United States of America Patent
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Oct 11, 2016
Grant Date -
Oct 31, 2013
app pub date -
Apr 19, 2013
filing date -
Apr 27, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
In a ball screw (1), comprising a screw shaft (3), a nut (7) threaded onto the screw shaft via a plurality of balls (9) received in a raceway (8) defined between the two parts, an end deflector receiving recess (6) is formed on each axial end thereof to complementarily receive an end deflector (21) which defines a part of the raceway in cooperation with an opposing part of the nut, wherein the end deflector is provided with a pair of engagement claws (31, 32) that engage corresponding parts of the thread (4) formed on the nut. Thereby, the need for a special engagement feature or other arrangement for attachment is eliminated, and still a highly firm and accurate engagement is ensured between the nut and the end deflector.
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