Dual spindle motor hard disk drive

A method of assembling a hard disk drive (HDD), the method comprising:

• having:
• a first portion comprising:
• a first enclosure having an open side and a closed side,
• a first spindle motor mounted in the first enclosure, and
• a plurality of first disk media rotatably mounted on the first spindle motor;
• and
• a second portion comprising:
• a second enclosure having an open side and a closed side,
• a second spindle motor mounted in the second enclosure,
• a plurality of second disk media rotatably mounted on the second spindle motor,
• a first plurality of head sliders each housing a read-write transducer configured to read from and to write to a respective disk medium of the first disk media,
• a first actuator configured for moving the first plurality of head sliders to access portions of the first disk media,
• a second plurality of head sliders each housing a read-write transducer configured to read from and to write to a respective disk medium of the second disk media, and
• a second actuator configured for moving the second plurality of head sliders to access portions of the second disk media;
• positioning the open side of the first portion with the open side of the second portion, such that the first spindle motor and the second spindle motor are coaxial;
• and
• coupling the first portion with the second portion.

A dual-spindle hard disk drive (HDD) assembly comprising:

• a top part comprising:
• a first spindle motor, and
• a plurality of first disk media rotatably mounted on the first spindle motor;
• and
• a bottom part with which the top part is coupled, the bottom part comprising:
• a second spindle motor coaxial with the first spindle motor,
• a plurality of second disk media rotatably mounted on the second spindle motor.