To provide a rotary structure that regulates relative movement between a first rotation body and a fixed component.

The rotary structure includes: an output shaft 30; a detector 332 fixed to the output shaft 30; and a clip 50H having a ring-like mounting part 54 arranged integrally with the detector 332 and coaxially with and outside of the output shaft 30, a plurality of pressure contact pieces 55 axially extended from the mounting part 54 to come in pressure contact with the outer peripheral surface of the output shaft 30, and an extended piece 66 extended radially inward from the inner peripheral edge of the mounting part 54. A caulking part 40 of the output shaft 30 caulks the extended piece 66 to integrate the clip 50H with the output shaft 30.