It has a large contact surface. This feature allows the belt to respond in a more effective way in case it is decentered

“Crab Automatic Upper Traking System” helps change the center of gravity on the decentered belt and alsohelps the steering mechanism to be activated by hitting the polyurethane guide roller. The guiding mechanism moves the centralizer from the pivot point in its center in the direction of its horizontal axis, thus centering the band quickly and abruptly.