Abstract: A servo includes a motor, an output shaft used to drive an external component and having an external lateral surface, a gear set arranged between the motor and the output shaft and used to transmit power from the motor to the output shaft. The gear set includes an output gear arranged around the output shaft. The output gear defines a through hole that allows the output shaft to pass therethrough. The through hole has an internal lateral surface facing the external lateral surface. The servo further includes a connection ring arranged around the output shaft between the external lateral surface and the internal lateral surface. The connection ring is used to connect the output gear to the output shaft when a load placed on the output shaft is less than a preset value, and disconnect the output gear from the output shaft when the load exceeds the preset value.

Abstract: A disk drive enclosure includes a cover and a base having a first hole therethrough. A head actuator is pivotably attached to the base by an actuator pivot bearing having a pivot bearing shaft with a lower internally threaded section and a flat annular support surface that is facing and in preloaded contact with a flat mating surface of the disk drive base around the first hole. A bearing member is disposed around the pivot bearing shaft and between the pivot bearing shaft and the bore of the actuator. A first screw has an externally threaded section that is engaged with the lower internally threaded section of the pivot bearing shaft. The first screw has a screw head with an external annular seating surface in contact with and forming a continuous annular seal with an internal annular seating surface of the first hole.

Abstract: A tolerance ring has a band with outwardly extending corrugated protrusions forming waves that engage an outer surface of a shaft. At one end of the tolerance ring is an inwardly flared guide surface extending axially and radially from the band. The guide surface acts as a tapered entrance to a bore of a housing to assist during assembly.

Abstract: The present invention generally relates to a head comb for use in a hard disk drive. In one embodiment, the head comb comprises a core body having a bore formed therethrough. The bore is bound by walls having a top extension extending into the opening and a bottom extension extending into the opening. The top extension has a first height, and the bottom extension has a second height that is different than the first height.

Abstract: A novel head stack assembly (HSA) is disclosed and claimed. The HSA includes first and second actuator arms. A first head gimbal assembly is attached to the first actuator arm. The first head gimbal assembly includes a read head. A dummy mass is attached to the second actuator arm. The dummy mass includes a mounting plate portion defining a mounting plate width, a neck portion defining a neck width and a neck length, and a distal mass portion defining a distal mass width and a distal mass length. The neck width is less than the mounting plate width and the neck width is less than the distal mass width.

Abstract: According to one embodiment, a head stack assembly cartridge is provided. The head stack assembly cartridge includes a base plate having a pivot shaft for pivotally mounting a head stack assembly and a base voice coil motor magnet attached to an inner surface of the base plate. The base voice coil motor magnet is arranged on the inner surface of the base plate to be adjacent to a coil of the head stack assembly pivotally mounted on the pivot shaft. The head stack assembly cartridge further includes a cover removably attached to the base plate and a pivot clamp removably attached to the cover and configured to secure the head stack assembly pivotally mounted on the pivot shaft.

Abstract: A disk drive comprising a guide member configured to guide a strip-shaped flexible wiring board, wherein the strip-shaped flexible wiring board has one end attached to a side portion of a carriage that is rotatably supported, in such a way that another end thereof is oriented toward a mounting position. A U-shaped component of the guide member comprises a pair of edge components and is formed into a U-shape, wherein the U-shaped component is inserted between two projecting components comprising a front-side projecting component and a rear-side projecting component which are arranged to a front and a rear portion of the carriage respectively and are provided on a side portion of the carriage, and the pair of edge components come into contact with the two projecting components, respectively, wherein the U-shaped components is elastically deformed in such a way that the pair of edge components come closer together.

Abstract: Embodiments in accordance with the present invention allow a resin member accommodating therein a trace, to have a small thickness. An HDD according to an embodiment of the present invention includes a resin accommodation member fixed to a side surface of arms. Part of a trace is accommodated in a slit formed in the accommodation member. Accommodating part of the trace in the slit helps suppress fluttering of the trace and improve head positioning accuracy. A corrugated surface structure is formed on each of surfaces of the arms and the accommodation member in abutment with each other. The corrugated surface structure is used to position the accommodation member in a pivot direction. The accommodation member, having the corrugated surface structure for positioning on the surface being fixed, can be made to have a thin wall.

Abstract: An HSA transport comb includes an alignment pin extending from the comb body into a tooling hole of the actuator arm, and a separator finger in contact with a suspension assembly of an HGA with the transport comb in a second angular orientation with respect to the actuator arm, but not in a first angular orientation. The transport comb includes a restraining tower extending into a mass-reduction opening of the actuator arm. The restraining tower includes a first lobe that fits within the mass-reduction opening with the transport comb in the first angular orientation, but not with the transport comb in the second angular orientation. The restraining tower also includes a first neck that fits within the mass-reduction opening with the transport comb in either angular orientation, and has a neck height that is greater than the actuator arm thickness.

Abstract: A head gimbals assembly for a hard disk for use in a thermally assisted magnetic disk recording medium, in which a laser diode is applied so as to record information with high density. The head gimbals assembly for a hard disk having a plurality of suspensions, each of which is provided with a magnetic head positioned adjacent to a corresponding disk surface among the disks so as to record/reproduce information; a head gimbals body having a centrally formed pivot hole which allows the head gimbals body to be fitted in such a manner as to be rotatable in relation to the disks, the suspensions extending from one end of the head gimbals body; a coil rotator provided at the other end of the head gimbals body so as to rotate the head gimbals body about the pivot hole; and a laser assembly having one or more laser diodes and one or more wave guides, the light emitted from any of the laser diodes is guided to a corresponding magnetic head by the wave guides.

Abstract: An apparatus is provided for releasably holding a contact pad of a head gimbal assembly in electrical contact with a flex cable assembly of an actuator coil assembly. The apparatus includes a clamp body pivotally connected to an actuator body of the actuator coil assembly and moveable between an open position and a closed position, and a latch rotatably connected to the clamp body and operable to selectively position the clamp body in the open and closed positions. The clamp body is configured to apply pressure to the contact pad of the head gimbal assembly to make electrical contact with the flex cable assembly when the contact pad is arranged on the flex cable assembly and the clamp body in the closed position.

Abstract: A head stack assembly of a disk drive unit includes a head arm assembly (HAA) having a head gimbal assembly, a drive arm to be connected with the head gimbal assembly; wherein the drive arm comprises a securing portion, a connection portion and a spacer connecting the securing portion with the connection portion. At least one undercut is formed on the spacer of the drive arm to strengthen the drive arm.

Abstract: A disc drive apparatus has a base, a disc, and a carriage. The base has a first vibration mode and a second vibration mode as reference vibration modes with respect to frequency response characteristics observed when the disc drive apparatus is shaken. The second vibration mode has a low-frequency second vibration mode (Base 2nd-1), in which a waveform peak is created on the low-frequency side, and a high-frequency second vibration mode (Base 2nd-2), in which a waveform peak is created on the high-frequency side. The two second vibration modes (Base 2nd-1 and Base 2nd-2) have a relationship such that the phase of a pivot position is inverted between them. A frequency of a first bending mode of an arm of the carriage is set in a frequency domain in a trough between the two second vibration modes.

Abstract: A disc drive head actuator includes a suspension structure and a slider integrated with the suspension structure. The actuator is one of at least two actuator assemblies batch-fabricated on a common substrate. The head actuator may be fabricated using mircofabrication techniques. The head actuator may have a reduced size, including package height relative to conventionally manufactured disc drives. Using mircofabrication and/or batch fabrication techniques provides reduced tolerances, which allows for increased actuation forces and/or reduced power consumption. Some embodiments include four-bar linkage actuators, which increase lateral stiffness of the actuator, allowing for a precise motion of the head relative to a media surface.

Abstract: An airflow diverter is used to overcome the adverse effect of flow-induced vibration of a disk drive pivot actuator. The diverter may be formed as a separate component or as an integral portion of the flex stiffener or the actuator itself. The invention streamlines the actuator to the incoming airflow and helps reduce the torque disturbance to the actuator as it reduces the sail or parachute effect. This helps reduce power consumption due to a lower drag from the actuator assembly. The contour of the flow deflector is designed to conform closely to the curvature of the disk boundaries when the actuator is rotated to the ID position on the disk. This design serves as a shroud around the disk stack which further helps to reduce power by preserving flow momentum.

Abstract: A method for assembling a head stack assembly with a disk drive base utilizing a tooling mandrel is described. The head stack assembly includes a pivot bearing cartridge with a shaft and a sleeve. The shaft includes a shaft first end with an engagement feature. The shaft defines an axis of rotation and a shaft outer circumferential surface. The sleeve defines a sleeve inner circumferential surface disposed towards the shaft outer circumferential surface. The tooling mandrel includes a retainer element defining a longitudinal axis and including a distal end. The distal end engages the engagement feature. The tooling mandrel includes tooling fingers angularly fixed to the retainer element with respect to the longitudinal axis. The tooling fingers each include a tip portion. Each tip portion engages the pivot bearing cartridge through cooperative radial movement with respect to the axis of rotation with the distal end engaged with the engagement feature.

Abstract: A holder with includes: a holder body formed by molding a resin material, a contact surface on the holder body for receiving an operating object to be held on the holder body, a grip portion on the holder body at a position apart from the contact surface for being gripped by an operator, and an electric conductor extending from the contact surface to the grip portion.

Abstract: An actuator assembly is provided having a ramp for unloading a transducing head from a storage medium. The actuator assembly includes an actuator arm rotatable about a pivot point and configured to access data on a storage medium. The actuator arm has a base end coupled to a lift tab and a distal end coupled to a transducing head. The actuator assembly also includes an inclined surface located adjacent the base end. The inclined surface is configured to engage with the lift tab to guide the transducing head away from the storage medium.

Abstract: A head support device of self-balancing type and a disk drive are disclosed. The head support device reduces manufacturing variation in a load and the number of components, and has stability and reliability, while being inexpensive. In this head support device, a flange and a nut cramp, via a collar, a head support arm having a reinforcing plate fixed thereto. The head support arm is supported rotatably about a line provided between contact points at which pivots contact the flange and in a direction perpendicular to a recording medium. A spring as an elastic member provides an urging force toward the recording medium, and is provided unitarily with the head support arm. Bent portions are provided on both sides of the arm composing the head support arm to a tab.

Abstract: The application discloses an adjustable head stack comb having adjustable first and second comb plates. The adjustable comb plates include at least one tooth segment which cooperatively form a comb having at least one tooth. The first and second comb plates are adjusted to adjust dimensions of the at least one tooth cooperatively formed by the tooth segments of the first and second comb plates. In the embodiments disclosed, a relative position of the first and second comb plates is adjusted to adjust a thickness dimension of the at least one tooth formed by the at least one tooth segments of the first and second comb plates. Also in illustrated embodiments, the comb plates are cooperatively adjusted to adjust an elevation or z-height of the at least one tooth of the comb.

Abstract: A head stack assembly includes a head stack assembly main body moving a head across a disk, and rotating around a predetermined pivot shaft. The head stack assembly also includes a center of gravity compensation portion coupled to the head stack assembly main body and compensating for imbalances in the center of gravity of the head stack assembly main body to be not more than a reference imbalance value. The reference imbalance value is based on an imbalance value of the center of gravity of the head stack assembly main body measured with respect to a rotational center of the pivot shaft.

Abstract: A method for manufacturing a head stack assembly that includes a pair of suspensions each of which supports a head, an arm that drives the head, and a pair of base plates that attach the pair of suspensions to both sides of the arm that has a perforation hole, each of the pair of base plates having a boss with an opening includes the step of swaging the pair of base plates with the arm by passing, in one direction, a processing member larger than the opening through the perforation hole and the base plates while the pair of base plates are being inserted into the perforation hole at both sides of the perforation hole, wherein where a neutral plane is defined as a plane that halves a thickness of the arm and is perpendicular to a section that includes a center axis of the perforation hole, a first position is defined as a position that has a minimum internal diameter of the base plate, and a second position is defined as a position closest to the neutral plane among contact positions between the base plates an

Abstract: An HGA protecting method and member and method of implementing the protecting method and member in a hard disk drive. The HGA includes an actuator, at least one pair of suspensions coupled to the actuator, a flexure having a stationary end fixed to each of the suspensions and a free end, and a slider attached between the stationary end and the free end of the flexure. The HGA protecting member may include a finger restricting excessive movement of the suspension. The finger may further have a flexure supporting portion supporting the free end of the flexure. The HGA protecting member may also be a removable assembly that may be removed after the HGA after assembly of the hard disk drive is complete.

Abstract: A carriage includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, a carriage arm to which the suspension is attached, and a body section to which the carriage arm is connected. The carriage arm includes a suspension fixing portion, as arm arranged substantially in parallel with a disk surface, and a restricting member which is a thin-plate-like member having a surface which is opposite to the plane of arm which is parallel to the disk surface. The restricting member and the arm are coupled via a viscoelastic body.

Abstract: A coil assembly of a disk device includes a support frame on which a voice coil is fixed and a board unit connected to the support frame. The board unit has a main FPC extending from a base portion and a connecting portion extending from one side of an extended end portion of the main FPC. The connecting portion comprises a first connecting portion which extends in a longitudinal direction of the main FPC and has a plurality of first connection pads, a junction portion extending from the first connecting portion, and a second connecting portion which extends in the longitudinal direction of the main FPC from the junction portion and has a plurality of second connection pads. The first and second connecting portions are fixed to first and second support surfaces, respectively, of the support frame.

Abstract: There is provided an actuator for a disk drive. The actuator includes an actuator body defining an axis of rotation. The actuator further includes a coil. The actuator further includes a wrap-around support extending from the actuator body radially beyond the coil with respect to the axis of rotation without encircling the coil. The actuator further includes a tang supported by the wrap-around support. The coil is positioned radially between the tang and the axis of rotation. The actuator body, the wrap-around support, and the tang are all a single components comprising a metal material having material continuity rather than an assembly of subcomponents.

Abstract: Embodiments of the invention establish electric continuity across an actuator head suspension assembly and a pivot bearing assembly without involving an increased manufacturing cost through a simple structure. In one embodiment, a carriage made of a plastic resin is provided with a pivot opening. A pivot bearing assembly is inserted into the pivot opening. The pivot opening includes a step formed by holes having different hole diameters from each other at an adjoining portion thereof. Two actuator arms are secured to the carriage through insert molding to support an HDA. One of the two actuator arms is provided with a hole functioning as a pivot opening and having a smaller hole diameter so as to form the step. The other of the two actuator arms is provided with a hole functioning as a pivot opening and having a larger hole diameter. The hole having the larger hole diameter includes protruded portions that abut against the pivot bearing assembly with no clearance therebetween.

Abstract: Embodiments of the invention relate to techniques to remove a defective head gimbal assembly (HGA) from a head stack assembly and replace the defective HGA with a good one without allowing any good HGAs to be damaged. In one embodiment, a volatile alcohol solvent is moved by gravity from a holder included in a reworking tool provided for a reworking jig to a shearing edge of a cartridge type edge mounted in the holder. The alcohol solvent is thereby deposited on the shearing edge in a drop-like shape through surface tension. The cartridge type edge is made to slide on a surface of an actuator arm and is inserted in a gap between contacting surfaces of a mount plate and the actuator arm. This assigns the drop-like alcohol solvent a function as a lubricant. Possible vibration can therefore be prevented from being transmitted through a carriage to other HGAs.

Abstract: The present invention provides unamount head/arm subassemblies and read-write head stack assembly for a disk drive, and a servowriter having the head stack assembly. Each head/arm subassembly is assembled and aligned individually so that multiple head/arm subassemblies can be installed on a mounting block to build the head stack assembly with all heads being properly aligned. In addition, each head/arm subassembly can be disassembled independently, facilitating easy rework on individual defect head.

Abstract: A slim actuator and a micro-drive apparatus using the same are provided. The slim actuator includes a suspension having a head mounted at one end of the suspension to write/read data to/from a disk and a head gimbal assembly. The head gimbal assembly includes a unit-mounting portion having one end connected to the suspension, a fantail molding portion extending from the other end of the uni-mounting portion, and a voice coil which is mounted on the fantail mounting portion such that current flows in the voice coil. The voice coil rotates the suspension by an electromagnetic force created by interaction between the electric field of the current and an applied magnetic field. Thus, the slim actuator uses a single channel and has excellent resonance characteristics. Mobile micro-drive apparatuses employing the slim actuators can be obtained.

Abstract: A disk drive head stack assembly (66) of a configuration that facilitates the assembly thereof is disclosed. One or more head/arm assemblies (74) are mounted on a pivot bearing (118). This pivot bearing (118) includes a tapered section (126). Each head/arm assembly (74) may be mounted on the pivot bearing (118). Thereafter, a retainer ring (102) may be advanced relative to the pivot bearing (118). Advancement of the retainer ring (102) along the tapered section (126) expands the retainer ring (102) so that the same may be disposed within a retainer ring slot (130) of the pivot bearing (118). Each head/arm assembly (74) is maintained between this retainer ring (102) and a flange (134) of the pivot bearing (118).

Abstract: A head stack assembly for a disk drive includes an actuator body. The actuator body includes a pair of sides, a bore defining a longitudinal axis, a first slot extending between the pair of sides, a second slot extending along a direction perpendicular to the longitudinal axis, the second slot extending from the first slot to the bore. The head stack assembly further includes a coil portion cantilevered from the actuator body in one direction and an actuator arm cantilevered from the actuator body in a direction opposite from the coil portion.

Abstract: A head support mechanism includes a rigid support arm, a suspension for supporting, at its leading end section, a head slider with at least one head element, the suspension having a balance structure that can be pivoted in a direction crossing a surface of a recording medium using as a fulcrum a load support point established between the suspension and the support arm, a load generation unit for generating a load applied to the load support point for pressing the head slider toward the surface of the recording medium, a horizontal rotation bearing unit for pivotally bearing the support arm and the suspension so that the support arm and the suspension are capable of rotatively moving in a direction parallel to the surface of the recording medium, and an weight unit coupled to a trailing end section of the suspension to match the center of gravity of the suspension including the head slider with the load support point.

Abstract: A method of manufacturing a disc drive actuator is provided. The method includes manufacturing a disc drive actuator and machining a peripheral surface of the actuator. The peripheral surface is machined to obtain a desired profile dimension and thereby reduce variations in resonance characteristics from one actuator to the next.

Abstract: Embodiments of the present invention include a disk drive actuator arm for reducing amplitude of vibration modes substantially planar to a disk surface. The actuator arm comprises a plurality of head arms coupled to the actuator arm, the head arms substantially equally spaced and substantially parallel to each other. The actuator arm further includes a damping material bonded to a surface of one of the plurality of head arms, wherein the surface is substantially parallel to the plurality of head arms. The actuator arm further includes a mass bonded to the damping material wherein the mass dampens the amplitude of vibration modes substantially planar to the disk surface.

Abstract: A hard disk drive with an actuator arm that discharges static charge from a disk. The actuator arm may be constructed from a corona discharger and/or a Polonium 210 or Americium 241 material that discharges static charge as the arm is moved across a disk. The disk is typically discharged before any read/write operation of the drive.

Abstract: Actuator arm includes an island coupling through a mote to at least two of actuator base, first and second actuator arm bridge. Head stack including at least one actuator arm. Head stack assembly including head stack. Hard disk drive including head stack assembly. Manufacturing methods for actuator arm, head stack, head stack assembly, and hard disk drive, and the products of these processes.

Abstract: A head stack assembly of a disk drive unit including a head arm assembly (HAA) having a head gimbal assembly, a drive arm to be connected with the head gimbal assembly; wherein the drive arm comprises a securing portion, a connection portion and a spacer connecting the securing portion with the connection portion. In the present invention, at least one undercut is formed on the spacer of the drive arm to strengthen the drive arm. The invention also discloses a method of manufacturing such a head stack assembly.

Abstract: A system and method for an improved magnetic head arm assembly (HAA), reducing complexity of design and difficulty of manufacture, is disclosed.

Abstract: Embodiments in accordance with the present invention allow a resin member accommodating therein a trace, to have a small thickness. An HDD according to an embodiment of the present invention includes a resin accommodation member fixed to a side surface of arms. Part of a trace is accommodated in a slit formed in the accommodation member. Accommodating part of the trace in the slit helps suppress fluttering of the trace and improve head positioning accuracy. A corrugated surface structure is formed on each of surfaces of the arms and the accommodation member in abutment with each other. The corrugated surface structure is used to position the accommodation member in a pivot direction. The accommodation member, having the corrugated surface structure for positioning on the surface being fixed, can be made to have a thin wall.

Abstract: An actuator with a moveable block and supporting a cantilevered arm has a windage stripper supported for movement in unison with the block and spanning a cantilevered length of the arm. The actuator has a load member connected to the arm and supports a data head at a cantilevered end, wherein the stripper comprises a vane terminating at a distal end beyond the cantilevered end. A method including moving a data storage medium creating windage adjacent to an actuator supporting a data head at a cantilevered end, and supporting a windage stripper comprising a vane at the cantilevered end for movement in unison with the actuator in shielding the cantilevered end from windage-induced excitation.

Abstract: An object of the present invention is to provide a hard disk drive or related apparatus in which a possibility of head crash can be reduced to minimum even if the apparatus receives an external impact during the operating state. To achieve the object, according to the present invention, in a suspension including a load beam to which a magnetic head slider is to be attached and a head arm continuously joined to the load beam, a dummy weight is attached to the rear end of the head arm, and a attachment position of a joining member for joining a portion including the magnetic head slider, the load beam, the head arm and the dummy weight with a swing portion of a voice coil motor is provided at a position in the vicinity of the center of mass of that portion.

Abstract: A head stack assembly (HSA) is disclosed for use in a disk drive comprising a disk, wherein a merge tool is used to merge the HSA with the disk. The HSA comprises at least one actuator arm with a suspension connected to the distal end of the actuator arm. A multi-level shipping comb attached to the actuator arm comprises a finger having a first surface and a second, raised surface. During shipping of the HSA, the first surface of the finger contacts the suspension to protect against overstressing. During manufacture of the disk drive, the shipping comb is actuated so that the second surface contacts the suspension thereby bending the suspension in a vertical direction to facilitate the insertion of the merge tool.

Abstract: A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity, yet each of the components is designable and manufacturable independent of one another, in addition to other advantages over current methods.

Abstract: A voice coil and actuator yoke assembly is fabricated by deforming the coil to exactly fit the inner perimeter and thickness of the yoke. The comb is placed in a tool that registers the comb with the yoke against the same flat surfaces that will squash the coil. The tooling is closed and placed in an appropriate loading device and the coils are squashed to the precise thickness of the yoke. This eliminates the in-plane tolerances of the current process for bonding a coil into the yoke. The coil perimeter expands as the coil is squashed to form an intimate press fit with the yoke. A low viscosity, high Tg adhesive is then applied to the coil. The low viscosity of the adhesive allows capillary action to fill the voids between the wires and bond the coil to the yoke.

Abstract: A solid-state actuation mechanism for use in a data storage system. The actuation mechanism includes an anchor fixedly attached to a housing of the data storage system, a spring member including a first end coupled to the anchor, a suspension coupled to a second end of the spring member, the suspension supporting a data head above a media surface, the suspension being biased by the spring member toward a first position, and an actuation component coupled to the suspension. The actuation component configured to apply an actuation force to the suspension to move the suspension laterally relative to the media surface.

Abstract: An object of the present invention is to provide a hard disk drive or related apparatus in which a possibility of head crash can be reduced to minimum even if the apparatus receives an external impact during the operating state. To achieve the object, according to the present invention, in a suspension including a load beam to which a magnetic head slider is to be attached and a head arm continuously joined to the load beam, a dummy weight is attached to the rear end of the head arm, and a attachment position of a joining member for joining a portion including the magnetic head slider, the load beam, the head arm and the dummy weight with a swing portion of a voice coil motor is provided at a position in the vicinity of the center of mass of that portion.

Abstract: An improved E-block for positioning one or more transducer assemblies proximate one or more rotating storage disks of a disk drive is provided herein. The E-block includes an actuator hub and one or more actuator arms which cantilever away from the actuator hub for holding the transducer assemblies proximate the rotating storage disks. As provided herein, at least one of the actuator arms is a depopulated actuator arm which retains less than two transducer assemblies. Each depopulated actuator arm includes at least one, weighted segment integrally formed into the depopulated actuator arm. Further, each depopulated actuator arm has an arm thickness which is less than an arm thickness for a double head actuator arm. The weighted segment and the reduced arm thickness allow the depopulated actuator arm(s) to vibrate similar to a populated actuator arm(s). This allows the disk drive to be designed and tuned to improve fragility and resonance characteristics of the E-block.

Abstract: Assemblies in accordance with the present invention can access a data storage medium having one or more disks. One such assembly comprises a mounting block including a bore and at least one arm connected with the mounting block. A flexible member is connected with the at least one arm and a head is associated with the flexible member. The head is positioned over the surface of the disk. The arm is designed such that it can be disconnected from the mount without disassembling the bore. By having a removably fastened arm, the assembly can be built at a relatively low cost and without misalignment and deformation. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

Abstract: A data access assembly with a load arm formed from an Mn—Cu alloy is disclosed. The load arm may be supported by and actuator arm formed from a common Mn—Cu damping alloy, which has a composition (X)Fe—(A)Mn—(B)Cu—(C)Ni. In one embodiment, X is substantially 73, A is substantially 20, B is substantially 5 and C is substantially 2, wherein A, B, C and X represent the weight percent of the respective elements in the composition.