TAPERED ROLLER BEARING

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200025251A1
SERIAL NO

16497763

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a tapered roller bearing, a cage includes a plurality of trapezoidal pockets and the pockets accommodate and hold a plurality of rollers. A notch having a width is provided in a post on a smaller width side of the pocket of the cage from a boundary between a smaller annular portion and a post toward a larger annular portion. Lubricating oil which flows from an inner diameter side of the cage toward an inner ring is quickly discharged through the notch toward an outer ring on an outer diameter side. A distance from an outermost surface of at least any one of the outer ring and the inner ring of the roller and a plurality of rollers to a bottom of a nitrogen enriched layer is equal to or longer than 0.2 mm. A rolling surface of the roller is provided with a logarithmic crowning profile.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KAWAI, Takashi Iwata-shi, Shizuoka, JP 155 1310
MATSUSHITA, Tomoki Iwata-shi, Shizuoka, JP 6 19

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