Nsk Corporation

Hiroki Komata

Hideyuki Hidaka

Masahide Natori

Hirofumi Ito

Hayato Ishigami

Takahito Shimada

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.

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

Growing community of inventors

Fujisawa, Japan

Hiroki Komata