This bearing housing unit combines a cast iron housing with a radial insert ball bearing secured by grub screws in the inner ring, sized for a 20.0 mm bore. The unit measures 31.0 mm in width and 64.0 mm in height, with a net mass of 0.58 kg and a basic dynamic load rating of 13600.0 N. R seals are fitted on both sides of the bearing to keep contaminants out of the rolling contact area. The grub screw fixing in the inner ring allows quick mounting directly onto a shaft without an adapter sleeve, making alignment straightforward during installation. The cast iron housing provides rigidity under the stated dynamic load rating, while the R seals maintain grease retention within the bearing, supporting stable operation once the unit is greased and mounted according to the bore diameter given.