Pillow block bearings, flange bearing units, bearing blocks, and take-up bearings units all consist of a housing with a bearing mounted in it. They are available in a variety of materials, mounting configurations and various bearing features. Each mounted unit, including a mounted bearing, acts as a system to position the bearing securely for reliable operation. Read more about each type of pillow block bearing using the links below.Besides the mounted flanged bearing units above, many ball bearings have flanges as options to their configurations to aid in mounting and positioning. This is especially true for miniature and instrument bearings but applies to other ball bearing types. While the flanged mounted bearing units above have the axial/shaft perpendicular to the mounting surface, the units below have the shaft running parallel to the mounting surface.