Roller bearing and manufacturing method of cage thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 17, 2005
app pub date -
Apr 25, 2005
filing date -
May 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A roller bearing in which a plurality of pockets (3) parallel to an axial center line are formed in an outer peripheral surface (2) of a ring-shaped cage (1). Rollers (5) are rotatably assembled in the pockets (3), and an annular piece (7, 7) having a shape bent in an inner diametrical direction with respect to the outer peripheral surface (2) is formed in a side surface of the cage (1). A concave portion (9, 9) continuously provided in a circumferential direction of the cage (1) is formed in any one of an inner side of the outer peripheral surface (2) in the cage (1), an inner side of the annular piece (7, 7) and an inner side of a corner portion (8, 8) where they intersect, or astride any one of the inner side of the outer peripheral surface (2), the inner side of the annular piece (7, 7) and the inner side of the corner portion (8, 8) where they intersect.
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