A bearing (200) for a gas turbine engine (100) may comprise a squeeze film damper. A bearing housing (250) may comprise a roughened surface (251). The roughened surface (251) may increase friction between the bearing housing (250) and the oil in the squeeze film damper. The increased friction may increase the damping force in the squeeze film damper. The increased damping force may prevent oil inertia, and prevent resonant vibrations.
