Tapered roller bearing and power transmission apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9897139
SERIAL NO

15031204

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A tapered roller bearing includes inner ring, outer ring, plurality of tapered rollers placed between inner and outer rings, and retainer having pockets receiving tapered rollers. Small diameter annular portion of retainer closes a small diameter side opening portion so that lubricating oil more than needed for lubrication can be limited from flowing into a bearing internal space. The small diameter side opening portion is constituted by a small collar portion provided on one axial end side of inner ring and one axial end portion of outer ring. A sliding contact face and recess portion are provided in radially outer side surface of each columnar portion. The sliding contact face is in sliding contact with outer ring raceway surface so that the retainer can be positioned radially by an outer ring raceway surface. Recess portion is recessed radially so that adjacent ones of the pockets can communicate with each other.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
JTEKT CORPORATIONCHUO-KU OSAKA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamamoto, Shigeo Kashiwara, JP 77 263
Murata, Junji Kashiba, JP 63 303

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