Crystalline radical polymerizable composition for fixing magnet to rotor core of rotating electrical machine, rotor core of rotating electrical machine using same, and method for producing rotor core of rotating electrical machine

The present invention provides a crystalline radical polymerizable composition for fixing a magnet of a rotor core of a rotating electric machine, which has excellent processability near normal temperature, excellent flow characteristics from an injection step to a curing step, and excellent strength of a cured product. The present invention relates to a crystalline radical polymerizable composition for fixing a magnet to a rotor core of a rotary electric machine, the crystalline radical polymerizable composition fixing a magnet inserted into a magnet accommodating portion provided in the rotor core of the rotary electric machine formed by laminated steel plates to the laminated steel plates. The present invention relates to: a crystalline radical-polymerizable composition which contains at least a crystalline radical-polymerizable compound (A) that is solid at 23 DEG C and has the property of imparting fluidity by heating; an inorganic filler (B); a silane coupling agent (C); and a radical polymerization ini