| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rolling bearing that has excellent productivity, is hard to generate internal original point type peeling, and has long service life.SOLUTION: The hardness of steel and a maximum oxide-based inclusion among oxide-based inclusions existing in volume of 35000 mm, as well as a component composition of steel used in a rolling bearing are predicted with an extreme value statistic method, and the square root of the area of the predicted maximum oxide-based inclusion is set to 25μm or more and 19.7α+1.2μm or less. Consequently, the rolling bearing has excellent productivity, is hard to generate internal original point type peeling and has long service life.</p> |
