| abstract |
[PROBLEMS] To provide an excellent anti-corrosion effect and suitable for applications that require a reduction in the amount of lubricant used or a reduction in bearing torque using a low-viscosity lubricant. A rolling bearing with excellent durability is provided. SOLUTION: Alumina component and yttria-zirconia component containing 1.5 to 5 mol% of zirconia component or yttria, by mass ratio, alumina component: zirconia component or yttria-zirconia component = 5-30: 70- The rolling bearing is made of an alumina-zirconia-based composite material having an average particle diameter of 2 μm or less, including 95, alumina sintered particles, zirconia sintered particles or yttria-zirconia sintered particles. [Selection] Figure 1 |