Cast Iron 3-Bolt Flange Bearing Unit UCFB206 30mm for Bracket Mounting Product Overview The UCFB206 Cast Iron 3-Bolt Flange Bearing Unit features a unique bracket-style (three-bolt flange) configuration designed for specialized mounting scenarios where traditional square or two-bolt diamond flanges do not fit. It is widely used in agricultural machinery, material handling conveyors, and industrial packaging equipment where rigid side-wall or frame-edge shaft support is