MULTIPOLAR CYLINDRICAL MAGNET AND COMPOSITE COMPONENT

To provide a multipolar cylindrical magnet with superior surface magnetic flux density.SOLUTION: In a multipolar cylindrical magnet that has an inner circumferential surface and an outer circumferential surface, and N and S poles are alternately and continuously magnetized in the circumferential direction, the surface magnetic flux density of the outer peripheral surface is 0.2 times or more the surface magnetic flux density of the inner peripheral surface, the multipolar cylindrical magnet includes anisotropic rare earth magnetic powder and a resin, and the filling rate of the anisotropic rare earth magnetic powder in the anisotropic rare earth magnetic powder and the resin is 50 vol% or more and 65 vol% or less.SELECTED DRAWING: Figure 1A 【課題】表面磁束密度がより優れた多極円筒状磁石を提供する。【解決手段】内周面及び外周面を有し、Ｎ極及びＳ極が周方向に交互に連続して着磁された多極円筒状磁石であって、前記外周面の表面磁束密度は、前記内周面の表面磁束密度の０．２倍以上であり、異方性希土類磁性粉末及び樹脂を含み、前記異方性希土類磁性粉末及び前記樹脂における前記異方性希土類磁性粉末の充填率が、５０ｖｏｌ％以上６５ｖｏｌ％以下である多極円筒状磁石に関する。【選択図】図１Ａ