- 专利标题： INDENTATION RESISTANCE MEASUREMENT METHOD, INDENTATION RESISTANCE PREDICTION METHOD FOR ROLLING BEARINGS, MACHINING CONDITION SELECTION METHOD, BEARING MATERIAL QUALITY SELECTION METHOD, BURNISHING CONDITION SELECTION METHOD, AND BEARING MANUFACTURING METHOD
-
申请号： US17631178申请日： 2021-04-07
-
公开(公告)号： US20220268316A1公开(公告)日： 2022-08-25
- 发明人: Hirofumi ITO , Takahito SHIMADA , Masahide NATORI , Hideyuki HIDAKA , Hayato ISHIGAMI , Hiroki KOMATA
- 申请人： NSK Ltd.
- 申请人地址： JP Tokyo
- 专利权人： NSK Ltd.
- 当前专利权人： NSK Ltd.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2020-080615 20200430,JP2021-023516 20210217
- 国际申请： PCT/JP2021/014752 WO 20210407
- 主分类号： F16C33/64
- IPC分类号： F16C33/64 ; F16C19/06 ; F16C33/62 ; G01M13/04 ; G01N3/40
摘要：
A method for measuring indentation resistance includes: obtaining a first curve indicating a yield shear stress in a depth direction of a raceway surface of a material forming a rolling bearing in a state before the raceway surface is subjected to machining, a second curve indicating a static shear stress in the depth direction of the raceway surface in a state in which the raceway surface is subjected to the machining, and a third curve indicating a static shear stress in the depth direction of the raceway surface in a state in which rolling elements are in contact with the raceway surface and a static load is applied to the raceway surface; and obtaining a correlation between an area and an indentation depth of the raceway ring by defining a region surrounded by exceeding the first curve and the second curve and falling below the third curve as the area.
信息查询
