Nsk Corporation

Masateru Kondo

Dai Kinno

Tsuyoshi Saito

Shunichi Kiyono

Tomoyuki Aizawa

Hidenobu Magami

Tomohiro Motoda

Makoto Koganei

Hiroyuki Uchida

Tooru Shouda

Sadayuki Tanaka

Akitoshi Maeda

Takamasa Ohira

Shingo Higashi

Naohiro Yoshida

Haruo Kamijo

Seisuke Takeda

Hidekazu Yoshiwara

Kazunobu Taketa

In a tapered roller bearing, neighboring pillar parts constitute a first engagement allowance in which an inner diameter-side opening width of each of the pockets becomes smaller than a roller diameter at a position of the opening width in a direction of a rotation axis of each of the tapered rollers at at least a part of an inner diameter side of each of the pockets, and constitute a second engagement allowance in which an outer diameter-side opening width of each of the pockets becomes smaller than the roller diameter at a position of the opening width in the direction at at least a part of an outer diameter side of each of the pockets. Bumps are formed on an inner surface of the small diameter ring part in the pockets. Small diameter-side end faces of the tapered rollers facing the bumps are substantially flat surfaces.

Tapered roller bearing and manufacturing method for tapered roller bearing

A rolling device in which rust development or damage on a raceway surface or rolling surface is hard to occur even if water and the like intrude is provided. A self-aligning roller bearing comprises an inner ring, an outer ring, and a plurality of rolling elementsdisposed rotatably between a raceway surfaceof the inner ringand a raceway surfaceof the outer ring. At least any one of the inner ring, the outer ring, and the rolling elementsis provided with a metal coating formed by shot peening of a powder of metal less noble than iron at least on a part of its surface.

Rolling device

A sealed rolling bearing comprising inner rings which can be divided in the axial direction and have a wall portion for defining part of a seal space therebetween, outer rings which can be divided in the axial direction to define a bearing space together with the inner rings between the outer rings and the inner rings, rolling elements provided in the bearing space, end face seal members provided at the opposite ends in the axial direction of the bearing space, respectively, and an intermediate seal member provided in the seal space, and the intermediate seal member comprising a seal body which can be eccentric due to centrifugal force during rotation, and a seal which comes into contact with the wall portion for defining the part of the seal space during halt.

Sealed rolling bearing with centrifugal feature

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Fujisawa, Japan

Masateru Kondo