A disk drive includes a storage disk, a data transducer, an actuator
assembly and a positioner. The actuator assembly supports the data
transducer over the storage disk. The actuator assembly includes a
rotatable actuator hub and a longitudinal axis. The positioner moves the
actuator assembly to position the data transducer relative to the storage
disk. During movement of the actuator assembly, the actuator hub is
subject to a resultant force that causes track misregistration of the
data transducer. The positioner includes a magnet assembly that generates
a magnetic field, a first conductor region and a second conductor region.
In one embodiment, the conductor regions cooperate with the magnet
assembly to generate a first force and a second force that are each
directed at an angle having an absolute value that is greater than zero
degrees and less than approximately 45 degrees relative to the
longitudinal axis of the actuator assembly. In another embodiment, the
conductor regions are each positioned at an angle having an absolute
value of greater than approximately 45 degrees and less than 90 degrees
relative to the longitudinal axis of the actuator assembly.