INA housing units are available as pedestal bearings, flange bearings, and clamping housing units. The units are ready for installation. To ensure functionality and safety, the bearings and housings are matched to each other. The TFE series consists of four-bolt flange bearing housing units made of gray cast iron, featuring a centering collar, eccentric clamping ring, and T-seal, which are lubricated for life. Additional designation: N = groove indentations in the housing for protective caps.