This axial cylindrical roller bearing carries pure axial loads in one direction while allowing free radial movement of the shaft washer relative to the housing washer. Bore diameter is 400.0 mm, outside diameter 480.0 mm, height 65.0 mm, and net mass 26.58 kg. The bearing uses a machined cage (M) and single-row roller arrangement, as designated by symbol 81180-M. Limiting speed is rated at 650.0 1/min, with a reference speed of 224.0 1/min, indicating suitability for slow to moderate rotational applications where high axial load capacity in one direction is required. The machined cage design supports stable roller guidance and even load distribution across the raceway. As with all axial cylindrical roller bearings of this design, the shaft and housing washers must be mounted with correct axial alignment, and separate radial support is required since this bearing type does not accommodate radial loads.