Enlarged opening filter bags, support assemblies, and filter bag assemblies

A filter bag assembly comprising:

• a flange assembly comprising an interior face and a tubesheet face, the flange assembly comprising a clean air outlet extending through the flange assembly;
• a cage comprising a first cage end attached to the flange assembly, the cage extending away from the interior face of the flange assembly over a cage length to a second cage end, the cage defining a cage axis extending between the first cage end and the second cage end;
• and
• a filter bag comprising a tubular body formed of filter media configured to remove particulate matter from air passing through the filter media, the tubular body extending from a closed end to a bag opening along a bag axis coincident with a central axis of the tubular body, wherein a sealing cuff extends around a perimeter of the bag opening, and wherein a bag opening perimeter length measured around the perimeter of the bag opening is greater than a body perimeter length measured in a reference plane oriented perpendicular to the bag axis at a location between the bag opening and the closed end.