Ok, thank you very much. Finally, I detached the side of my tyre-surface to put different textures on each new surface.

I've made a little animation (about 990 KB) with my tyre, the camera moves around the tyre while it's rotating. At the end, the brake pad brings the brake disk to glow .. : https://kingmarkuz.tripod.com/Wheelani.avi

Best Regards

Markuz