A polyoxymethylene resin molded article comprising 100 parts by mass of a polyoxymethylene resin (A) and 0.1 to 5 parts by mass of a sliding agent (B), wherein four or more dispersion domains of the sliding agent (B) are present in a region of 1000 nm in depth from a surface of the molded article and 12000 nm in width, and the dispersion domain has an average minor diameter of 300 nm or less, and an average major diameter of 600 nm or more and 5000 nm or less.

A polyoxymethylene resin molded article comprising 100 parts by mass of a polyoxymethylene resin (A) and 0.1 to 5 parts by mass of a sliding agent (B), wherein four or more dispersion domains of the sliding agent (B) are present in a region of 1000 nm in depth from a surface of the molded article and 12000 nm in width, and the dispersion domain has an average minor diameter of 300 nm or less, and an average major diameter of 600 nm or more and 5000 nm or less.

According to one embodiment, a method of manufacturing a lift tab of a suspension assembly, includes: forming a first mask on a first surface of a plate-shaped base material; forming a second mask smaller than the first mask by a width less than or equal to a plate thickness of the base material, on a second surface of the base material, which is on an opposite side to the first surface, to oppose the first mask; etching the base material from both surface sides through the first mask and the second mask, to cut out the base material; and subjecting the cut-out base material to a bending process to form the lift tab.

According to one embodiment, a method of manufacturing a lift tab of a suspension assembly, includes: forming a first mask on a first surface of a plate-shaped base material; forming a second mask smaller than the first mask by a width less than or equal to a plate thickness of the base material, on a second surface of the base material, which is on an opposite side to the first surface, to oppose the first mask; etching the base material from both surface sides through the first mask and the second mask, to cut out the base material; and subjecting the cut-out base material to a bending process to form the lift tab.

A disk apparatus includes a base including a bottom wall and a sidewall disposed along a peripheral portion of the bottom wall, a cover including a ceiling plate and a side plate disposed along a periphery of the ceiling plate, the ceiling plate being fixed to the sidewall and the side plate facing an outer surface of the sidewall, and a rotatable recording medium disposed between the cover and the bottom wall. The sidewall of the base includes a first portion adjacent to the recording medium and a protruding portion that protrudes from the first portion outward and away from the recording medium, and at least a portion of a sidewall of the protruding portion faces an opening formed in the side plate.

A disk apparatus includes a base including a bottom wall and a sidewall disposed along a peripheral portion of the bottom wall, a cover including a ceiling plate and a side plate disposed along a periphery of the ceiling plate, the ceiling plate being fixed to the sidewall and the side plate facing an outer surface of the sidewall, and a rotatable recording medium disposed between the cover and the bottom wall. The sidewall of the base includes a first portion adjacent to the recording medium and a protruding portion that protrudes from the first portion outward and away from the recording medium, and at least a portion of a sidewall of the protruding portion faces an opening formed in the side plate.

According to one embodiment, a suspension assembly includes a support plate and a lift tab extending in a first direction. The lift tab has an arc-shaped cross section, and includes an arc-shaped outer circumferential surface, an arc-shaped inner circumferential surface, a first upper end surface located between one arc ends of the outer and inner circumferential surfaces, and a second upper end surface located between other arc ends of the outer and inner circumferential surfaces of the inner circumferential surface, and a first angle made between the outer circumferential surface and the first upper end surface is less than a second angle made between the inner circumferential surface and the first upper end surface.

According to one embodiment, a suspension assembly includes a support plate and a lift tab extending in a first direction. The lift tab has an arc-shaped cross section, and includes an arc-shaped outer circumferential surface, an arc-shaped inner circumferential surface, a first upper end surface located between one arc ends of the outer and inner circumferential surfaces, and a second upper end surface located between other arc ends of the outer and inner circumferential surfaces of the inner circumferential surface, and a first angle made between the outer circumferential surface and the first upper end surface is less than a second angle made between the inner circumferential surface and the first upper end surface.

According to one embodiment, a suspension assembly includes a support plate and a lift tab extending in a first direction. The lift tab has an arc-shaped cross section, and includes an arc-shaped outer circumferential surface, an arc-shaped inner circumferential surface, a first upper end surface located between one arc ends of the outer and inner circumferential surfaces, and a second upper end surface located between other arc ends of the outer and inner circumferential surfaces of the inner circumferential surface, and a first angle made between the outer circumferential surface and the first upper end surface is less than a second angle made between the inner circumferential surface and the first upper end surface.

A ramp support for a magnetic storage device includes a first ramp, having a first-ramp receiving end and a first-ramp surface, and a second ramp, having a second-ramp receiving end, offset laterally from the first-ramp receiving end, and a second-ramp surface. A first first-ramp portion faces and is angled toward a virtual plane. A second first-ramp portion faces and is angled away from the virtual plane. A third first-ramp portion faces and is angled toward the virtual plane. A first second-ramp portion faces and is angled toward the virtual plane, and a second second-ramp portion faces and is angled away from the virtual plane. In the direction along the virtual plane, the first second-ramp portion extends further than the first first-ramp portion and terminates at the same location relative to the plane as the second second-ramp portion, and the third first-ramp portion extends further than the second second-ramp portion.