This bearing housing carries a self-aligning linear ball bearing mounted inside a closed unit with a width of 87.0 mm, a height of 70.0 mm and a net mass of 0.88 kg. The bearing is sealed on both sides, greased, and fitted with a relubrication facility, allowing fresh grease to be added during operation without dismantling the unit. The self-aligning design of the linear ball bearing compensates for shaft misalignment and housing bore tolerances, which reduces stress on the bearing during linear motion. The seals keep grease inside the unit and prevent contamination from entering, while the relubrication facility supports maintaining grease supply over extended operating periods. The KGSNG30-PP-AS is supplied as a complete housing unit, so it can be installed directly onto a linear shaft without additional bearing selection.