Housed & Flanged BearingsView Ashley Power's range of Housed & Flanged bearings, we are able to offer a wide selection of both housed and flanged bearings in many qualities. In this section you will be able to see our range which includes 2 and 4-bolt flanged bearings, take up units, pillow blocks and many insert bearings to suit. Two-bolt flanged units tend to be a diamond shape with two mounting holes, The Four-bolt flanged bearings are square and are capable of accommodating higher loads. Flanged bearings feature an external flange on the outer ring, this design aids in the mounting and positioning of the bearing. Housed bearings are often used in the agricultural industry, food industry, construction and conveyor systems.