Roller element for ball screw device
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United States of America Patent
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-
N/A
Issued Date -
Jul 5, 2012
app pub date -
Dec 29, 2010
filing date -
Dec 29, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A motion guide device or ball screw device includes a ball nut attached onto a shaft and having helical grooves for forming a ball guiding raceway between the ball nut and the elongated shaft, and a number of roller bearing elements received and engaged with the roller guiding raceway of the ball nut and the elongated shaft, and the roller bearing elements each include two or more bearing members disposed side by side relative to each other, one of the bearing members includes a coupling member or shaft for engaging with the other bearing member and for pivotally coupling the bearing members together, the bearing members include one or more depressions for receiving a lubricating oil or the like.
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