... the mounting surface is parallel to the shaft axis.2. Flange type– includes UCF, HCF, UKF, UCFX, UKFX, UCFU, UCFC, UKFC ... , UCFS, UCFL, UKFL, UCFT. The flange type bearing housing comes in various shapes and styles such ... as square, round, and rhombus flange types.3. Take-up units type - UCT, HCT, and UKT ...