Bearings are subjected to a lot of wear and tear and require protection from temperature and pressure. A bearing housing does just that. As a cylindrical or rectangular casing, it encloses the bearings with a protective cast iron or steel barrier. The bearing housing is positioned at the pump’s base, where the shaft extends out from the main body of the pump. For the bearing housing to work properly, it has to be securely attached to the pump and also aligned precisely with the rotating shaft. Some housings may have lubrication channels so that the bearings receive the right amount of lubrication.