The Koyo UCF310 is a genuine 4-bolt square flange bearing unit, engineered for reliable performance in various industrial applications. This unit features a 50mm bore diameter and is constructed with a durable cast iron housing (F310) that encases a UC310 insert bearing. Its robust design includes an overall height and width of 165mm, an overall depth of 57mm, and precise bolt hole spacing of 130mm with 19mm bolt hole diameters, ensuring secure and stable mounting.