Nsk Corporation

Toshiharu Takamura

Yuji Shimomura

Tomoyuki Aizawa

Hidenobu Magami

Sadayuki Tanaka

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.

Growing community of inventors

Kanagawa, Japan

Toshiharu Takamura