In response to global climate change problem, efforts have begun in industry to achieve carbon neutrality by reducing emissions of CO₂, a greenhouse gas. This article explains the movement toward carbon neutrality by steel manufacturers that manufacture the steel that is used as the base material for rolling bearings, as well as trends in research and development of bearing steel materials with an eye toward contributing through use of products. In the steel manufacturing process, research is being conducted into the direct reduction process of iron ore, promotion of higher efficiency in the heating process, and consideration of switching from fossil fuels. To extend the life of bearings, research is underway to reduce the harmful effects of inclusions based on the rolling fatigue mechanism.
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