This cylindrical roller bearing carries axial load in a single direction and consists of three separate components: the K811 roller and cage assembly, the GS housing washer and the WS shaft washer. Bore diameter is 120.0 mm, outside diameter 155.0 mm, height 25.0 mm, and net mass is 1.046 kg. The cage is designated TV. Limiting speed is 2090.0 1/min and reference speed 780.0 1/min. The single-direction design means the bearing takes axial load from one side only, so the shaft and housing washers must be positioned accordingly during assembly. Being a pure thrust bearing, it does not support radial load and requires accurate axial alignment of the mating surfaces. Given its separable construction, mounting and dismounting can be carried out without disturbing adjacent components, and the assigned speed limits should be observed when selecting lubrication and operating conditions.