| 摘要 |
A rotor for a miniature electric motor has a commutator and an armature mounted on a shaft 11. The commutator has a plurality of armature laminations including two end laminations 30, stacked together on the shaft 11 to form an armature core 12 having a plurality of poles 33 and an armature winding wound around the poles 33 and terminated on the commutator. The two end laminations 30 each have means for balancing the rotor in the form of projections 31 extending from adjacent the radially outer periphery 34 of the armature core 12. The rotor is balanced by bending or deforming radially selected projections 31 or parts thereof. The projections 31 may be divided into a number of fingers 36 to assist balancing. The desired degree of balance is achieved by bending selected projections 31 or parts thereof radially. <IMAGE> |
