... where the mounting surface is parallel to the shaft axis. 2. Flange type– includes UCF, HCF, UKF, UCFX, ... , 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 ... because they are capable of accommodating shaft expansion or contraction due to temperature differences ...