Abstract: Oil deflectors are used in large rotary machines to seal against oil leakage which travels axially along the shaft from a flood lubricated bearing in which the shaft is mounted for rotation. Disclosed is a fluid-cooled oil deflector in which cooling is provided by apparatus which distributes, in a substantially uniform flow pattern, a stream of cooling fluid across the inner surface of the support plate which holds a labyrinth seal in place around the rotating shaft. Preferably the cooling fluid is taken as a side stream of oil from the main supply stream which passes directly to the bearings for lubrication. The apparatus includes a first arcuate, substantially semi-circular, upper gutter which spans the shaft at an outer location on the support plate. Cooling oil, or other fluid, received at the radially outer side of the gutter, generally at the apex of the arc, passes through spaced-apart slots in the gutter and down a portion of the inner surface of the support plate.