Right-hand member 6 of the clutch is keyed to shaft 8 and rotates about fixed axis A. Left-hand member 7 of the clutch is keyed to shaft 9 and rotates about fixed axis B. Torque up to the permissible value is transmitted from shaft 8 to shaft 9 through balls 1, located in recesses of ring 2, and balls 3 in the holes of disk 4. Upon overload, balls 1 are raised to the position shown by dash lines, and the clutch is disengaged. When the torque is reduced again, springs 5 push balls 3 and 1 back to their initial positions and the clutch is engaged again.
$3404$SmF,C$