Provides radial support and axial location for the mating bearing, holding it in a fixed position within the housing bore. The outside diameter is 90.0 mm and the ring has a net mass of 64.77 g, giving it a compact profile suited to installation alongside the fixed bearing it stabilises. As a bearing housing component, FRM90/10,5 is fitted to secure the bearing against displacement, keeping the fix bearing correctly seated during operation. No other data on internal clearance, sealing or lubrication is provided, so the ring should be selected and mounted according to the fix bearing arrangement it is intended to support.