| 摘要 |
PROBLEM TO BE SOLVED: To prevent exfoliation resulting from segregation of an impurity and improve rolling fatigue life, in a rolling bearing including an alumina-zirconia-based ceramic rolling body.SOLUTION: In a rolling body made from alumina-zirconia-based ceramic whose alumina component is 70-95 mass%, the specific surface area of alumina raw material powder is 6 m/g or more, and the specific surface of zirconia raw material powder forming a zirconia component is twice as large as the specific surface area of the alumina raw material powder. |
