FYH Bearing UCPX11 55mm Pillow Block Mounted BearingUCPX11 FYH Bearing Pillow Block Bearing Cylindrical bore (with set screws) 55mm Inner Diameter Bearing This is the most common type of mounted ball unit. The rib at the bottom of the housing mounting section provides for a robust unit that can withstand great loads from any direction. Mounted units with cast steel housings are also available in this series, and are used for applications with severe loading and shock load conditions. Tapered bore style