Cage for roller bearing and manufacturing method thereof

Details Cage for roller bearing and manufacturing method thereof Cage for roller bearing and manufacturing method thereof

2011-01-11

2011-01-11

Charles, Marcus (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S580000, C384S623000, C029S898067

Reexamination Certificate

active

07866895

ABSTRACT:
In the present cage, both pillar portions which face each other in a circumferential direction of a pocket have a plurality of bent portions which are alternately bent in a width direction, and each bent portion is provided with roller stopping portions protruding into the pocket. The bent portions are formed in a curved cross-sectional shape. Tip portions of the bent portions in the thickness direction of the cage are formed in a cross-sectional shape that becomes narrower toward the tips, and the tip portions are drawn in a state where they protrude into the pocket by plastic deformation working, thereby forming the roller stopping portions.

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