The BLG (Belt Linishing Grinder) was originally developed for centerless circular grinding of large diameter rings on site.
In various branches of industry, installations are used where at large diameter, metal rings are used to give a revolving movement to a drum. for example: cement factories, steel mills, various mixers, and dryers etc.
In most cases, one or more metal rings are supported by guiding rolls.
The long and high surface pressure (point load) of the rings (metal to metal contact) creates material stresses that cause deformation and become unround (poligonal) of the large ring.
And this problem will get worse exponentionally.
So the earlier we can fix the problem, the risk of damaging other parts of the installation is smaller.