This locating washer serves as the housing-side component of a single direction axial cylindrical roller bearing arrangement, used together with K811 and WS elements to complete the 811 series set. Outside diameter is 105.0 mm and net mass is 143.2 g. The washer provides the flat locating surface against which the roller and shaft washer assembly runs, transmitting axial load through a hardened, ground contact face. Because the GS washer has no inner bore machining and no flange guidance, it must be mounted with proper radial support from the housing and correctly aligned with its mating shaft locating washer and roller and cage assembly. The flat ground surface finish supports smooth axial load transfer under single direction thrust, and correct alignment with the K811 roller set ensures even load distribution across the working surface.