Centrifugal switching system

In an actuator responsive to centrifugal forces for actuating a switching system in a motor assembly, an actuator member fixedly mounted on an armature shaft within the motor assembly, said actuator member comprising a hub section of a predetermined thickness and axial extent, a generally dome-like, circumferentially disposed, and substantially continuous web section extending radially outwardly from and axially in one direction relative to said hub section, said dome-like web section including a generally convex surface with a plurality of circumferentially spaced weight leg sections emanating from the outer periphery thereof, each of said weight leg sections extending axially relative to said axial extent of said hub in said one direction for a predetermined axial extent, and wherein the dome-like web includes a plurality of radially extending slots inwardly directed from the outer periphery of said actuator member, circumferentially extending means on said actuator member proximate said outer periphery for actuating a prepositioned switch mounted within said switching system, whereby as said armature shaft reaches a predetermined rotational speed said weight leg sections move radially outwardly causing said dome-like web to snap from a first position to a second position wherein said circumferentially extending means actuates said prepositioned switch when said dome-like web is in said second position.