A bearing assembly, comprising: a bearing housing comprising a first bearing housing surface and a second bearing housing surface where the first and second bearing housing surfaces (105, 106) are substantially axially parallel with respect to a rotor centerline; a damped outer race, comprising: a first outer race surface radially adjacent to and opposing the first bearing housing surface which is located radially interior to the first outer race surface; a first piston ring groove in the first outer race surface, where the first piston ring groove comprises a first piston ring that seals between the first bearing housing surface and the first outer race surface; a second outer race surface radially adjacent to and opposing the second bearing housing surface which is located radially exterior to the second outer race surface; and a second piston ring groove in the second outer race surface, where the second piston ring groove comprises a second piston ring that seals between the second bearing housing surface and the second outer race surface; where the bearing housing comprises an oil passage that is configured to provide oil from an outlet to a first space of axial length L 1 radially between the first outer race surface and the first bearing housing surface, and configured to provide oil to a second space of axial length L 2 radially between the second outer race surface and the second bearing housing surface; characterised in that the oil passage extends in a substantially axial direction with respect to the rotor centerline to provide oil to a third space that connects the first space and the second space. a bearing housing comprising a first bearing housing surface and a second bearing housing surface where the first and second bearing housing surfaces (105, 106) are substantially axially parallel with respect to a rotor centerline; a damped outer race, comprising: a first outer race surface radially adjacent to and opposing the first bearing housing surface which is located radially interior to the first outer race surface; a first piston ring groove in the first outer race surface, where the first piston ring groove comprises a first piston ring that seals between the first bearing housing surface and the first outer race surface; a second outer race surface radially adjacent to and opposing the second bearing housing surface which is located radially exterior to the second outer race surface; and a second piston ring groove in the second outer race surface, where the second piston ring groove comprises a second piston ring that seals between the second bearing housing surface and the second outer race surface; a first outer race surface radially adjacent to and opposing the first bearing housing surface which is located radially interior to the first outer race surface; a first piston ring groove in the first outer race surface, where the first piston ring groove comprises a first piston ring that seals between the first bearing housing surface and the first outer race surface; a second outer race surface radially adjacent to and opposing the second bearing housing surface which is located radially exterior to the second outer race surface; and a second piston ring groove in the second outer race surface, where the second piston ring groove comprises a second piston ring that seals between the second bearing housing surface and the second outer race surface; where the bearing housing comprises an oil passage that is configured to provide oil from an outlet to a first space of axial length L 1 radially between the first outer race surface and the first bearing housing surface, and configured to provide oil to a second space of axial length L 2 radially between the second outer race surface and the second bearing housing surface; characterised in that the oil passage extends in a substantially axial direction with respect to the rotor centerline to provide oil to a third space that connects the first space and the second space.