GREASE COMPOSITION AND GREASE-SEALED BEARING

摘要

PROBLEM TO BE SOLVED: To provide a grease composition which can efficiently prevent peeling on a rolling surface due to hydrogen brittleness in a grease-sealed bearing, and to provide a grease-sealed bearing. SOLUTION: This grease-sealed bearing 1 in which a grease composition 7 is sealed is characterized in that the grease composition 7 is a grease composition which comprises an additive and a base grease comprising a base oil and a thickening agent. The additive contains a metal fluoride in an amount of 0.05 to 10 pts.wt. per 100 pts.wt. of the base grease. COPYRIGHT: (C)2008,JPO&INPIT