There are many kinds of metallurgical equipment, not only the equipment required by the raw material plant, but also the equipment required from the upstream process to the downstream process, such as the steel making process, the rolling process, and the leveling process. These devices are equipped with various bearings. These bearings are used under the “iron powder”, “water” and “hot” conditions unique to metallurgical equipment, and also need to meet the requirements of “heavy load + vibration shock” and “from ultra low speed to high speed + rapid acceleration and deceleration”. Conditions, used under very harsh conditions.
The rolling process in which the heated steel sheet is pressed by the nip rolls is also a representative step in the use of the dynamic metallurgical equipment, and is also an important step that greatly affects the quality of the final product. The two ends of the main roll mainly use four-row tapered roller bearings. Bearing use conditions are also representative in metallurgical equipment, not only need to withstand heavy loads, but also under the harsh conditions of cooling water and foreign matter (iron powder) erosion.