A housing for an air cycle machine includes a housing with a first end and a second end opposite the first end, a first duct adjacent the first end of the housing with an air inlet and an air outlet, a second duct adjacent the second end of the housing with an air inlet and an air outlet, and a collar in the housing extending into the second duct. The collar includes a first annular surface facing radially inward and configured to engage a journal bearing and a second annular surface facing radially inward and configured to engage a rotating shaft, wherein the second surface is monolithic with the housing.