Disk device

A disk device comprising:

• a base with an internal space, including
• a support surface,
• an inner peripheral surface extending around an axis,
• an outer surface opposite the inner peripheral surface, and
• a gate located on the outer surface, wherein the internal space is recessed from the support surface in a first direction along the axis, and is filled with a gas;
• a cover that is supported by the support surface to seal the internal space;
• a magnetic disk that is disposed in the internal space to be rotatable around the axis with respect to the base;
• and
• a filter that is disposed in the internal space and configured to collect a substance different from the gas;
• wherein
• the internal space includes
• a disk chamber inside the inner peripheral surface to house the magnetic disk,
• a filter chamber opening on the inner peripheral surface to communicate with the disk chamber and house the filter, and
• a flow path opening on the inner peripheral surface away from the filter chamber around the axis, allowing the disk chamber and the filter chamber to communicate with each other, and being located between the gate and the disk chamber, and
• along the axis, a distance between an end of the gate in a second direction and an end of the flow path in the first direction is 6 mm or less, the second direction being opposite to the first direction.