A spindle motor that can be reduced in size and thickness and yet develops a
high
rotational torque, and an information recording and/or reproducing apparatus employing
this spindle motor. A rotor R includes a turntable 50 which carries and
secures a disc-shaped recording medium D and which is rotatable relative to a fixed
shaft 66 via a bearing, a ring-shaped first magnet 60 secured to
the turntable 50 and arranged inwardly of a coil 68 having the fixed
shaft 66 as center, and a ring-shaped second magnet 62 secured to
the turntable 50 and arranged outwardly of the coil 68 having the
fixed shaft 66 as center. The rotor R is rotated relative to the stator
S, by a magnetic field generated in the coil 68 on supplying the current
to the coil 68 and another magnetic field generated between the first and
second magnets 60 and 62.
