| abstract |
[PROBLEMS] To reduce the rattling noise caused by buffer particles and maintain the effect of reducing the noise in the passenger compartment, while further reducing the steering torque of the electric power steering device more than the current situation. A lubricant composition that can be used, a reduction gear capable of sufficiently reducing the steering torque of the electric power steering device by using the lubricant composition, and an electric power using the reduction gear A steering device is provided. In a buffer material particle, (1) In the lubricant composition, an oil film forming component that forms an oil film by adsorbing lubricating oil to the surface of the buffer material particles, and (2) solid lubricant, A lubricant composition containing at least one of the above, a reduction gear 50 filled with the lubricant composition, and an electric power steering apparatus incorporating the reduction gear. [Selection] Figure 2 |