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公开(公告)号:US20210071711A1
公开(公告)日:2021-03-11
申请号:US16982404
申请日:2019-03-08
申请人: NTN CORPORATION,
发明人: Takahiro OKADA , Naoya KAMURA , Takumi FUJITA
摘要: A rolling component has a surface. The rolling component includes a fiber flow and a non-metallic inclusion. In a region from the surface of the rolling component to a first depth, a gap between the non-metallic inclusion and a member forming the rolling component is filled. The first depth is 50 μm or more. The surface and the fiber flow form an angle of 15° or more.