Core for, rotating electrical machine

A core included in a rotor or a stator of an axial-gap rotating electrical machine, wherein

• the core includes a block-shaped first member and a plate-shaped second member that are constituted by powder compacts,
• the first member includes a first surface that faces the second member, and a first coupling portion that is formed at the first surface,
• the second member includes a second surface that faces the first surface, and a second coupling portion that is formed at the second surface and that is coupled to the first coupling portion,
• one of the first coupling portion and the second coupling portion is constituted by a protrusion, and the other one is constituted by a recess having a shape corresponding to the protrusion, and
• a front shape of the first coupling portion when seen in a direction orthogonal to the first surface and a front shape of the second coupling portion when seen in a direction orthogonal to the second surface are ring shapes or discontinuous ring shapes that are partly discontinuous,
• wherein
• the first member includes a third coupling portion that is formed on an inner side of a ring shape of the first coupling portion at the first surface,
• the second member includes a fourth coupling portion that is formed on an inner side of a ring shape of the second coupling portion at the second surface,
• the third coupling portion has a shape protruding or recessed on a side opposite to the first coupling portion with respect to the first surface, and
• the fourth coupling portion has a shape corresponding to the third coupling portion.