Shaft ring and rotating shaft provided with shaft ring

The utility model relates to a shaft ring and a rotating shaft provided with the shaft ring, which are used for being arranged on the rotating shaft in low-voltage/medium-voltage switch equipment and comprise a first shaft ring part and a second shaft ring part, regular structured grains are arranged on the outer circumferential surface or the side surface of at least one of the first shaft ring part and the second shaft ring part; wherein the first shaft ring part and the second shaft ring part can be combined together to form a shaft ring, so that the shaft ring is fixed on the rotating shaft. According to the shaft ring provided by the utility model, the regular structured lines are arranged on the surface, and when the shaft ring is fixed on the rotating shaft, an uneven structure can be formed outside the rotating shaft, so that the rotating speed of the rotating shaft can be measured by utilizing an inductive sensor; moreover, due to the split type structure, the rotating shaft can be conveniently insta