Magnetic powder clutch is a drive unit (input shaft) and the slave unit (output shaft) merger. In the space between the two groups of cells, filled with granular powder (off-plot about 40 microns). When the magnetic coil is not conductive, the torque will not pass on the driven shaft from the shaft, but if the electromagnetic coil power, it attracts because of the role of magnetic powder produced hardening phenomenon, at the company following the slip torque between the would convey the .