Methods to Reduce the Consumption of Rolling Mill Bearings

Aug 27, 2021

Do a good job of rolling mill bearings by using data statistics, find out the laws or problems of rolling mill bearing damage, so as to accurately propose methods for reducing the consumption of rolling mill bearings. Generally speaking, only one-third of the damage caused by bearing fatigue damage is due to poor lubrication, and one-third of the damage is due to pollutants entering the bearing or improper installation and handling. Luoyang FV thinks that we can record from the following aspects:

Design and accuracy of the rolling mill;

Implementation of rolled products and process changes;

The effect of lubrication and sealing;

On-site conditions such as mill adjustment and transmission;

On-site conditions such as the accuracy of bearing assembly parts and assembly and disassembly conditions;

Types of bearing damage and installation positions.

The strength of each part of the bearing should be matched. 

Under the condition of ensuring the strength of the bearing chock (that is, the good rigid support of the rolling mill bearing), the rolling mill bearing with a large load capacity should be selected as far as possible. In addition, the dimensions of the rolling mill bearing parts should be optimized according to the application conditions to ensure that the strength of the rolling mill bearing parts is equivalent and maximize the bearing life cycle. For example, if the bearing box is worn out and deformed, and the outer ring of the bearing is broken, the outer ring of the bearing can be thickened, the diameter of the rollers can be reduced, and the strength of the outer ring can be enhanced to extend the life of the bearing.

The use of high-quality bearing materials. 

Due to the existence of non-metallic inclusions, especially oxide inclusions, the strength of the bearing material is weak, causing stress concentration and premature fatigue damage to the bearing. Therefore, carburized steel or electro slag remelted bearing steel can be used. Although the unit price of the bearing is higher, the bearing damage is less, the operating rate of the rolling mill is increased, and the overall cost will be reduced.

Rolling mill bearing precision, clearance and fit.