Nsk Corporation

Sadayuki Tanaka

Yuji Shimomura

Dai Kinno

Tsuyoshi Saito

Tomoyuki Aizawa

Hidenobu Magami

Tomohiro Motoda

Tooru Shouda

Masateru Kondo

Akitoshi Maeda

Takamasa Ohira

Hiroyuki Uchida

Shingo Higashi

Naohiro Yoshida

Haruo Kamijo

Toshiharu Takamura

Seisuke Takeda

Kazunobu Taketa

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 lubricating structure of a bearing for lubricating a bearing by supplying oil air which is transmitted with pressure through respective distribution passages of an oil air distributor from an oil air supply apparatus to the bearing, comprising a first lubrication route for supplying the oil air to the bearing to lubricate inner portion of the bearing; and a second lubrication route for supplying the oil air to the bearing, and leading this oil air to a fit portion between the internal diameter surface of the inner race and the shaft portion through a seal member having a predetermined void portion, thereby lubricating this fit portion.

Lubricating structure of bearing

A sealing device for a roll bearing which includes an outer ring, an inner ring, a rolling element rotatably interposed between the outer and inner rings, and a retainer, comprises a seal holder having a seal holder portion and a seal body attached to the seal holder portion. A portion of the retainer is received in a sealing space defined by the seal holder portion while the portion of the retainer is being disposed outside a range of interference with the seal holder portion. The sealing device further comprises conical surfaces,and,which are provided as fitting surfaces of a seal holder portion,and a seal body,fit to the seal holder portion,. Accordingly, a space,into which one end of a retainer of the bearing is receivable can be formed, and the inside diameter d of the seal holder portion,can be reduced.

Sealing device for a rolling bearing

Growing community of inventors

Fujisawa, Japan

Sadayuki Tanaka