Patent ID: 6471409
Filing Date: 2002-10-29
Classification: F16C,H02K,Y10S

Abstract:
A bearing device including a pair of bearings, one of which is exposed to a higher temperature condition than the other, each of said bearings having an outer ring, an inner ring, a plurality of rolling members disposed in a space between said outer ring and said inner ring and a pair of sealing members fixed to said outer ring to respectively cover said space, each of said sealing members having an elastic lip in contact with outer surfaces of a corresponding one of said inner rings, and a shaft rotatably supported by said pair of bearings, whereinsaid lip of one of said pair of bearings exposed to a lower temperature is made of one of nitrile rubber and acrylic rubber, and the other lip exposed to a higher temperature is made of a high temperature resistant material that is more heat-resistant than any one of nitrile rubber and acrylic rubber.