LINEAR MOTION GUIDANCE APPARATUS
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United States of America Patent
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N/A
Issued Date -
Jun 9, 2011
app pub date -
Jul 11, 2008
filing date -
Aug 30, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A linear motion guidance apparatus suppresses a waving phenomenon, and includes a track rail with rolling member rolling grooves along the longitudinal direction, a movable block with loaded rolling member rolling grooves that face the rolling member rolling grooves, and a plurality of balls rollably provided in loaded rolling paths formed of the rolling member rolling grooves and the loaded rolling member rolling grooves. The movable block can make reciprocating motion in the longitudinal direction of the track rail. The linear motion guidance apparatus is configured so that the diameter of each of the balls is 1/10 of the width of the track rail or smaller and the movable block has a block length compliant with ISO. The number L of endless circulation paths is L=4×N (N is a natural number greater than or equal to two), and in particular, the number of paths L is preferably eight.
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