Rolling bearing and method for producing same

Abstract

A rolling bearing includes a first raceway ring having a first raceway surface, a second raceway ring having a second raceway surface, and a plurality of rolling elements held between the first raceway surface and the second raceway surface in a freely rollable manner. An oxide film containing Fe3O4 is provided on at least one of surfaces of the first raceway surface and the second raceway surface and surfaces of the rolling elements. A film thickness of the oxide film is 0.6 μm or more and 2.0 μm or less. A crystallite size calculated from a peak attributable to the (311) plane of the Fe3O4 is 2.5 nm or more and 3.2 nm or less.

Dependencies are inferred from the claim text.