BALL BEARING RETAINER
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United States of America Patent
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N/A
app pub date -
Feb 25, 2016
filing date -
Aug 30, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A ball guide type ball bearing retainer (3) according to the present invention retains balls (4) in pockets (Pt) provided in a circular ring portion (5), and the circular ring portion (5) includes annular portions (6, 7) disposed at both sides in an axial direction and pillar portions (8) which connect the annular portions (6, 7). Each pocket (Pt) is formed by the annular portions (6, 7) at the both sides and the pillar portions (8) adjacent to each other. At outer diameter portions of the pillar portions (8), outer diameter restriction portions (9) are provided which extend toward a pocket side and restrict and guide the balls (4) from an outer diameter side with guide surfaces (9a) thereof, and are inclined flat surfaces which are inclined so as reach a large diameter side as extending from the pillar portions (8) toward a pocket (Pt) center side.
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