MOTOR ARMATURE ARRANGEMENT

摘要

In an armature structure for motor, the inside diameter (D2) of the end (3c) of a cylindrical armature shaft (3) is smaller than the inside diameter (D1) of a motor core fitting part (3b). Therefore, the thickness is increased and a sufficient strength of a bearing fitting part is secured without increasing the outside diameter of the end (3c) of the shaft (3) which is a bearing (8a) mounting part.