HARD FILM, HARD FILM FORMED BODY, AND ROLLING BEARING

摘要

Provided are: a hard film which has high wear resistance and excellent separation resistance and is thus capable of preventing separation for a long time; and a hard film formed body which is provided with the hard film. A hard film (8) has a structure that is configured of: a first mixture layer (8a) which is mainly composed of Cr and WC and is directly formed on an inner ring raceway surface (2a) of an inner ring (2) of a rolling bearing that serves as the base; a second mixture layer (8b) which is mainly composed of WC and DLC and is formed on the first mixture layer (8a); and a surface layer (8c) that is mainly composed of DLC and is formed on the second mixture layer (8b). The first mixture layer (8a) is a layer wherein the Cr content decreases and the WC content increases continuously or in stages from the base side toward the second mixture layer (8b) side. The second mixture layer (8b) is a layer wherein the WC content decreases and the DLC content increases continuously or in stages from the first mixture layer (8a) side toward the surface layer (8c) side, and the hydrogen content in the second mixture layer (8b) is 10-45% by atom.