Cutter assembly of lawnmower

A cutter assembly of lawnmower, including:

• a base body, defining an axial direction;
• a fixing plate, disposed on the base body and having a first circumferential wall, a first bearing being received inside the first circumferential wall;
• a motor, disposed on the base body, including a base seat, a rotor, and a rotation axle, the base seat being disposed on the base body and having a second circumferential wall, two second bearings being received inside the second circumferential wall, the rotor being rotatably arranged on the base seat to be rotatable about the axial direction, the rotation axle and the rotor being linked-up and inserted through the two second bearings and the first bearings, the two second bearings being located an upper portion of the rotation axle along the axial direction, the first bearing being located at a lower portion of the rotation axle along the axial direction;
• a cutter, linked-up with the lower portion of the rotation axle;
• a restriction assembly, fixed on the rotation axle to position the cutter on the rotation axle.