| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost magnet roll having high magnetic force. SOLUTION: Related to a magnet roll comprising a cylindrical or pillar-like ferrite resin magnet, comprising ferrite magnetic powder and binder resin, wherein a plurality of magnetic poles are formed on the outer periphery, a rare earth resin magnet 4 comprising rare earth alloy magnetic powder and binder resin is adhered into a groove 3 provided in the longitudinal direction on the outer periphery of the cylindrical or pillar-like ferrite resin magnet 2.
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