A rotor includes a rotary shaft, a rib provided on the rotary shaft, and a disc-form holding member. The holding member is joined to an axial end face of the rib. The holding member is thereby coupled with the rotary shaft. The holding member is provided with permanent magnets arranged in a circumferential direction. A stator is confronted with the rotor along a central axis of the rotor.

 
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> Air intake system and forklift equipped with it

~ 00379