Abstract: The invention relates to a bearing sleeve fixing mechanism adapted for a fan device to cool a heat generating component like MPU incorporated into a personal computer or a heat sink thermally connected to the heat generating component, a method of manufacturing the bearing sleeve fixing mechanism, and a fan device having the bearing sleeve fixing mechanism. The bearing sleeve fixing mechanism comprises: a shaft; a bearing sleeve, into which one end portion of the shaft is inserted, for pivotally supporting the shaft; a housing for accommodating the bearing sleeve; and a fixing ring press-fitted into the housing so that the bearing sleeve can be interposed between the fixing ring and a receiving mount provided in the housing, wherein the fixing ring fixes the bearing sleeve by giving a plastic deformation to the housing so that a recess portion can be formed in the housing.