| 摘要 |
Bearing component having a surface at least one part of which has been surface hardened by induction heating. A cross section of the bearing component through said surface exhibits a hardness Hsurface at said surface, and remains substantially equal through a first region, a hardness Hcore at the non-hardened core of the bearing component and remains substantially equal through a third region and a transition, second region spanning between the first and third regions. The average hardness in the first region of the harness profile is Y1 and the average hardness in the third region of the harness profile is Y3 and the hardness profile in the second region has a section defined as a line between the points where 0<k<2, on the hardness profile. The hardness of said section of said second region decreases on average by less than 50 HCR per mm. |
