How are steel rings and fibreglass reinforcements used in organic grinding wheels?

In the manufacture of organic grinding wheels, steel rings and fibreglass reinforcements are incorporated into the wheel structure during the production process. Because these wheels use organic bonds—such as resins, rubber, or shellac—they are baked at relatively low temperatures (between 150° and 200° C). This lower temperature range allows for the inclusion of these materials, which are baked directly into the wheel.1

The primary purpose of these reinforcements is to increase the wheel's resistance to breakage caused by side pressure. Additionally, steel rings or molded-in threaded bushings are used to help secure the wheel onto specific grinding machines.1