Adjustable Flange Bearing Units is one design of mounted ball bearing unit, UCFA2 is the suffix of this type bearing unit, the bearing unit have UC chrome steel pillow block bearings and FA housing with cast iron materials.

4-bolt flange bearing units is one kind of mounted ball bearing units, this design have 4 bolt in the housing and its suffix is UCF series, The UCF Ball bearing unit are also the most widely used on the market.

UCFB..A Standard duty,Flange bracket,Inch-based housing,Wider inner ring bearing,Setscrew locking,Cast gray iron housing .

Flange Cartridge Bearing Units, UCFC Standard duty, Wider inner ring bearing,Setscrew locking, Cast gray iron housing