ug212UG212-39. Ball Insert Bearing - Straht Bore, 2-716 in Bore Diam., 4.3307 in OD, Medium Duty, Eccentric Collar Locking. MI ITEM # 01508996. MFR # UG212-39. Availability: In Stock.ug212+er, ug212+er ,,,ug212+er,,,,