This ring provides axial stabilisation for a fixed bearing arrangement, holding the outer race securely positioned within the housing bore. The outside diameter is 120.0 mm and the net mass is 0.152 kg, matching it to the corresponding bearing size for a locked, fixed-side installation. As a bearing housing component, it is fitted where the bearing must be axially constrained on one side of the shaft line while the opposite bearing position remains free to accommodate thermal expansion. It carries no independent load rating of its own and requires no lubrication, its function being purely mechanical retention of the fixed bearing within the housing assembly.