Resin lubrication grease composition

Abstract

The present invention provides a grease composition to be used for lubrication between resin-made members or lubrication between a resin-made member and a member made from another material. With respect to the total mass of the composition, more than 0.5 mass % but less than 7.5 mass% of a solid organic molybdenum compound is contained.

1 . A grease composition for use in lubrication between a resin-made member and a resin-made member or lubrication between a resin-made member and a member made from another material, comprising:
 a solid organic molybdenum compound in an amount of more than 0.5% by mass and less than 7.5% by mass relative to a total mass of the composition.   
     
     
         2 . The grease composition according to  claim 1 , wherein the content of the solid organic molybdenum compound is 1 to 5% by mass. 
     
     
         3 . The grease composition according to  claim 1 , wherein a thickener is a lithium soap thickener. 
     
     
         4 . The grease composition according to  claim 1 , wherein
 a base oil of the grease composition contains at least one compound selected from the group consisting of synthesized hydrocarbon oils and mineral oils.   
     
     
         5 . The grease composition according to  claim 1 , wherein 
 the resin-made member to be lubricated is of a polyamide.   
     
     
         6 . The grease composition  claim 1 , wherein
 the member made from another material other than the resin-made member to be lubricated is a metal-made member.   
     
     
         7 . A reducer for an electric power steering, filled with the grease composition according to  claim 1 .