ESG Bearing is an expert of rolling mill bearings. The working conditions for steel mill bearings are demanding as they will face dust, steel particles, water, heat, high speed and high temperature, almost the toughest conditions compared to other industry.

Bearing with higher hardness will be more wear-resistant, but it will easily crack. Thus the bearing's working life will be reduced.

How to  avoid this problem, most bearing manufacturers do not dare to make the bearings too hard. Their hardness is around 58~60 HRC. ESG Bearing has the advanced heat treatment technology. The tenacity of the bearing is improved by 30% compared with ordinary bearings. The hardness of the bearing is also improved by 2 HRC, reaching about 60~61 HRC. Thus the bearing is more wear-resistant and won’t easily crack out, it has a much longer working life.