| 摘要 |
PROBLEM TO BE SOLVED: To provide a relatively inexpensive rolling bearing for a cooling fan of an automobile provided compatibly with a high-temperature seizure life, corrosion resistance and low-temperature flowability. SOLUTION: This rolling bearing for the cooling fan of the automobile is sealed with a grease composition mixed with at least one of metal complex soap-based grease and urea-based grease with 8 to 35 mass% of thickening agent in each thereof, and fluorine-based grease containing 15 to 42.5 mass% of polytetrafluoroethylene as a thickening agent, using a perfluoropolyether oil as a base oil, at 40-60:60-40 of mass ratio of the at least one of the metal complex soap-based grease and the urea-based grease: the fluorine-based grease, to bring total amount of the thickening agents into 24-28 mass%. COPYRIGHT: (C)2009,JPO&INPIT |
