Hard disk drive having a motor assembly with a rotational balancing spring pin
AssigneeSeagate Technology LLC
InventorsLi Hong Zhang, Felicisimo T. Marquez, JR., Xiong Liu, Chee Kwong Cheng
Life of this patent
Estimating the term…
Abstract
A hard disk drive includes at least one magnetic disk and a motor assembly. The motor assembly is configured to rotatably support the magnetic disk(s) and circumferentially rotate the magnetic disk(s) about an axis of rotation during operations of the hard disk drive. The motor assembly includes at least one rotational balancing spring pin. Each rotational balancing spring pin is configured to reduce a rotating unbalance of the motor assembly.
Claims20
A hard disk drive comprising:
- at least one magnetic disk;
- and
- a motor assembly configured to rotatably support the at least one magnetic disk and circumferentially rotate the at least one magnetic disk about an axis of rotation during operations of the hard disk drive,
- the motor assembly comprising at least one rotational balancing spring pin configured to reduce a rotating unbalance of the motor assembly.
A hard disk drive comprising:
- at least one magnetic disk;
- and
- a motor assembly configured to rotatably support the at least one magnetic disk and circumferentially rotate the at least one magnetic disk about an axis of rotation during operations of the hard disk drive, the motor assembly comprising:
- at least one rotational balancing spring pin configured to reduce a rotating unbalance of the motor assembly, and
- a motor hub configured to support each of the at least one magnetic disk,
- wherein each of the at least one magnetic disk is mounted on the motor hub such that an annular volume of each of the at least one magnetic disk encircles an axially oriented portion of the motor hub,
- wherein the motor hub comprises at least one opening in the axially oriented portion of the motor hub,
- wherein each of the at least one rotational balancing spring pin is disposed in an opening of the at least one opening.
A method of making a hard disk drive, the method comprising the steps of:
- providing a motor assembly configured to rotatably support at least one magnetic disk and circumferentially rotate the at least one magnetic disk about an axis of rotation during operations of the hard disk drive, the motor assembly comprising at least one opening configured to accommodate a rotational balancing spring pin, the rotational balancing spring pin configured to reduce a rotating unbalance of the motor assembly;
- mounting each of the at least one magnetic disk on the motor assembly such that an annular volume of each of the at least one magnetic disk encircles an axially oriented portion of the motor assembly;
- providing at least one rotational balancing spring pin;
- and
- inserting each of the at least one rotational balancing spring pin in an opening of the at least one opening of the motor assembly.
Dependencies are inferred from the claim text.