Modular rotary actuator assembly for a rotatable media data storage device

An actuator assembly adapted to access a data storage medium, the actuator assembly comprising:

• a mount including a bore adapted to receive a bearing assembly;
• the bearing assembly arranged so that a journal of the bearing assembly is disposed within the bore;
• a spacer extending from the mount, the spacer having a top surface and a bottom surface;
• a top arm disposed over the top surface of the spacer;
• a module removably disposed over the top arm;
• an insert disposed between the top arm and the module;
• wherein the module includes:
• a first module arm;
• a second module arm;
• and
• a module spacer disposed between the first module arm and the second module arm;
• wherein the module spacer is adapted to be disassociated from the mount when the module is removed from disposition over the top arm.

An assembly to perform an operation with one or more data storage mediums, the assembly comprising:

• an actuator assembly including:
• a mounting block having a first end and a second end,
• a bore disposed within the mounting block,
• a bearing assembly arranged so that a journal of the bearing assembly is disposed within the bore;
• a voice coil holder extending from the first end of the mounting block, and
• a spacer extending from the second end of the mounting block, wherein the spacer includes a top surface and a bottom surface;
• a bottom arm assembly removably connected with the bottom surface of the spacer, the bottom arm assembly having a bottom arm and a bottom head operably associated with the bottom arm;
• and
• an arm stack assembly removably connected with the top surface of the spacer, the arm stack assembly including:
• a top arm assembly having a first arm and a first head operably associated with the first arm,
• a module disposed over the top arm, and
• an insert disposed between the top arm and the module,
• wherein the module includes:
• a first module arm assembly including a first module arm and a first module head operably associated with the first module arm,
• a second module arm assembly including a second module arm and a second module head operably associated with the second module arm, and
• a module spacer disposed between the first module arm assembly and the second module arm assembly;
• wherein the insert and the module are adapted to be disassociated from the mounting block when the arm stack assembly is removed from the top surface of the spacer.

An apparatus for data storage comprising:

• a housing;
• a spindle motor connected with the housing;
• a disk rotatably connected with the spindle motor;
• an actuator assembly pivotally connected with the housing, the actuator assembly including a bore to receive a bearing assembly;
• the bearing assembly arranged so that a journal of the bearing assembly is disposed within the bore;
• an arm stack assembly removably connected with the actuator
• assembly, the arm stack assembly including:
• a top arm assembly having a first arm and a first head operably associated with the first arm,
• a module disposed over the top arm, and
• an insert disposed between the top arm and the module,
• wherein the module includes:
• a first module arm assembly including a first module arm and a first module head operably associated with the first module arm,
• a second module arm assembly including a second module arm and a second module head operably associated with the second module arm, and
• a module spacer disposed between the first module arm assembly and the second module arm assembly;
• wherein the insert and the module are adapted to be disassociated from the actuator assembly when the arm stack assembly is removed from the actuator assembly.