X fan 80 x 80 x 25mm dc axial fans 12v24v ballsleeve bearing x fan rdh8025s2 rdh8025s2 is a high quality sleeve bearing 24v dc axial fan from x fan which has been manufactured to a high standard this brushless cooling fan has passed through stringent quality control testing and has the following safety approvals x fan rdh8025s2 80 x 80 x 25mm axial fan 24v sleeve bearing