| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller bearing for a long-life fuel cell superior in water resistance, exfoliation resistance in addition to lubricative ability, a gas compressor for fuel cell system which is actuated stably over a long period of time provided with the roller bearing, and a fuel cell system to carry out stable power generation over a long period of time provided with the gas compressor. <P>SOLUTION: This is a roller bearing for fuel cell assembled in the gas compressor of the fuel cell system provided with at least a fuel cell stack and the gas compressor to transport various kinds of fluid, and a grease containing a base oil and a thickener is sealed, into which inorganic compound particles of an average particle diameter of 2μm or less are added by 0.1 to 10 wt% of the total grease amount. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
