A clutch device , comprising: a first transmission member and a second transmission member , wherein the first transmission member is movable between a jointed position and a disjointed position, when the first transmission member is in the jointed position, it is jointed with the second transmission member to transfer torque, and when the first transmission member is in the disjointed position, it is disjointed from the second transmission member to switch off transfer of torque; and a driving mechanism , comprising a driving device and a driven member , wherein the driven member is connected with the driving device and the first transmission member respectively in transmission, the driving device drives the driven member to move to bring along the first transmission member to move between the jointed position and the disjointed position, and the direction of movement of the driven member is parallel to the direction of movement of the first transmission member , wherein the central axis of the driven member and the central axis of the first transmission member both extend along the direction of movement of the driven member , the first transmission member and the driven member are fixed relative to each other in the axial direction of the driven member , and the first transmission member and the driven member are rotatable relative to each other, characterized in that a bearing is provided between the first transmission member and the driven member , and the bearing comprises an inner ring, an outer ring and multiple rolling elements provided to be rollable between the inner ring and the outer ring; and a first shaft shoulder and a first fastener are provided axially at an interval on the first transmission member , the inner ring abuts between the first shaft shoulder and the first fastener , a second shaft shoulder and a second fastener are provided axially at an interval on the driven member , and the outer ring abuts between the second shaft shoulder and the second fastener , so as to achieve fixing relative to each other in the axial direction and rotation relative to each other in the circumferential direction of the driven member for the first transmission member and the driven member . a first transmission member and a second transmission member , wherein the first transmission member is movable between a jointed position and a disjointed position, when the first transmission member is in the jointed position, it is jointed with the second transmission member to transfer torque, and when the first transmission member is in the disjointed position, it is disjointed from the second transmission member to switch off transfer of torque; and a driving mechanism , comprising a driving device and a driven member , wherein the driven member is connected with the driving device and the first transmission member respectively in transmission, the driving device drives the driven member to move to bring along the first transmission member to move between the jointed position and the disjointed position, and the direction of movement of the driven member is parallel to the direction of movement of the first transmission member , wherein the central axis of the driven member and the central axis of the first transmission member both extend along the direction of movement of the driven member , the first transmission member and the driven member are fixed relative to each other in the axial direction of the driven member , and the first transmission member and the driven member are rotatable relative to each other, <EOS>