Interlocked with a motorcycle engine

摘要

The rotor (10) includes a body (20) provided with a cylindrical central projection (11) with a collar (12) having a ring shape. The central projection is coupled directly to the shaft of an engine. The central hole of the projector has a conic wall (13) which cooperates with the conic extremity of the shaft. Three threaded holes (24) are provided in the body on a circle centred on the projection. A number of permanent magnets (27) are provided in the body along a radial direction. A steel lid (28) covers the magnets.