The driving device is composed of two electric motor, which go to the groovedwheel through the triangle belt and drive the roller rotating in the opposite direction.
驱动机构是由两个电动机，通过传动到槽轮上拖动辊轮，按照相对方向运动旋转。
2
With spiral grooved grinding wheel, one can get better surface finish and roundness than with conventional grinding wheel, especially when applied in grinding hard material such as carbide.