Lubricating grease composition
A lubricating grease composition containing a base oil having a kinematic viscosity of 10 mm 2 /s or more and 60 mm 2 /s or less at 40° C.; a thickener containing at least one soap selected from a metal soap and a metal complex soap; and a solid lubricant containing porous polyamide particles. An amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition.
1. A lubricating grease composition comprising:
a base oil having a kinematic viscosity of 10 mm 2 /s or more and 60 mm 2 /s or less at 40° C.;
a thickener containing at least one soap selected from the group consisting of a metal soap and a metal complex soap; and
a solid lubricant containing porous polyamide particles,
wherein an amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition; and
the porous polyamide particles have a specific surface area of 2.0 m 2 /g or more; and
the porous polyamide particles contain polyamide particles of at least one selected from the group consisting of nylon 6 (PA6) and nylon 66 (PA66).
2. The lubricating grease composition according to claim 1 , wherein the porous polyamide particles have an average particle diameter of 1 μm or more and 30 μm or less.
3. The lubricating grease composition according to claim 1 , wherein the thickener is at least one soap selected from the group consisting of a lithium soap and a lithium complex soap.
4. The lubricating grease composition according to claim 1 , wherein the base oil contains at least one synthetic oil selected from the group consisting of a synthetic hydrocarbon oil, an ester-based synthetic oil, an ether-based synthetic oil, and a glycol-based synthetic oil.
5. The lubricating grease composition according to claim 1 , wherein the base oil contains at least one synthetic hydrocarbon oil selected from the group consisting of poly-α-olefin, an ethylene-α-olefin oligomer, an ethylene-α-olefin copolymer, polybutene, alkylbenzene, and alkyl naphthalene.
6. The lubricating grease composition according to claim 1 , wherein the lubricating grease composition is used for lubrication between resin members and between a resin member and a metal member.
7. The lubricating grease composition according to claim 1 , wherein the lubricating grease composition is used for lubrication between gears of resin members and between a gear of a resin member and a gear of a metal member.