Common paper machines are 200 meters long and 10 meters wide, which can utilize the roller to process 2000 meters paper at a speed of 120km/h. Therefore, there is an exceedingly high demand for paper machine bearings that can handle the humidity, high-temperature, axial –deflection of the equipment while maintaining a long service life.

Based on the heat treatment technique, we developed bearings with high-reliability, which can boost the capacity of the paper industry. The inner ring of bearings can breaking from temperature difference between the axis and ring. By nitrocarburizing the material to increase inner ring strength, we can provide a high-quality bearing product which is suitable for the paper industry.