Disk device

A disk device comprising:

• a housing;
• ten or more magnetic disks disposed in the housing and opposing each other at intervals;
• suspension assemblies each supporting a magnetic head, and being movable with respect to the magnetic disks;
• and
• a ramp comprising a plurality of guide surfaces, on which tabs of the suspension assemblies are climbable, respectively,
• wherein the ramp comprises the guide surfaces opposed each other with a gap therebetween,
• each of the guide surfaces of the ramp includes a first slope which inclines and extends from near a surface of the respective magnetic disk in a direction away from the magnetic disk, and a support surface continuously extends from the first slope in a direction away from the magnetic disk, and
• a minimum gap between the support surfaces of the opposing guide surfaces is 0.2 mm or more but 0.25 mm or less.

A disk device comprising:

• a housing having a maximum height of 26.1 mm, defined by 3.5-inch disk device standards;
• ten or more magnetic disks disposed in the housing and opposing each other at intervals;
• and
• suspension assemblies each supporting a magnetic head, and being movable in a space between the magnetic disks,
• a gap between two adjacent magnetic disks opposing each other being 1.2 mm or more but 1.5 mm or less, and
• a thickness of the magnetic disks being 0.35 mm or more but 0.5 mm or less.

A disk device comprising:

• a housing;
• ten or more magnetic disks disposed in the housing and opposing each other at intervals;
• suspension assemblies each supporting a magnetic head, and being movable with respect to the magnetic disks;
• and
• a ramp comprising a plurality of guide surfaces, on which tabs of the suspension assemblies are climbable, respectively,
• wherein the suspension assemblies each comprising a base plate, a load beam extending from the base plate and including a proximal end portion joined to the base plate and including a bendable location and a distal end, a tab extending from the distal end of the load beam, and a wiring member disposed on the load beam and the base plate, and the magnetic head is mounted on the wiring member, and
• a ratio of a distance from the bendable location of the load beam to a ramp loading point of the tab in contact with a respective one of the plurality of guide surfaces, with respect to a distance from a tip of the tab to the ramp loading point is 18 or more but 21 or less.

A disk device comprising:

• a housing;
• ten or more magnetic disks disposed in the housing and opposing each other at intervals;
• suspension assemblies each supporting a magnetic head, and being movable with respect to the magnetic disks;
• and
• a ramp comprising a plurality of guide surfaces, on which tabs of the suspension assemblies are climbable, respectively,
• wherein the suspension assemblies each comprising a base plate, a load beam extending from the base plate and including a proximal end portion joined to the base plate and including a bendable location and a distal end, a tab extending from the distal end of the load beam, and a wiring member disposed on the load beam and the base plate, and the magnetic head is mounted on the wiring member, and
• each of the guide surfaces of the ramp includes a first slope which inclines and extends from near a surface of the respective magnetic disk in a direction away from the magnetic disk, and a support surface continuously extends from the first slope substantially parallel to the surface of the magnetic disk, and
• a distance between one end and an other end of the first slope in a direction perpendicular to the surface of the magnetic disk is 0.3 mm or more but 0.35 mm or less.