| 摘要 |
PURPOSE:To obtain long-life lubrication by impregnating 7-17 vol% of polyamide resin having connected pores of a bearing retainer body with complete fluoridized oil. CONSTITUTION:A molded article of a polyamideimide resin 1 is impregnated with complete fluoridized oil by operating air and water in connected pores 2 in an heating and decompressed atmosphere. After impregnation, excessive complete fluoridized oil is removed to complete a bearing regainer. Thus, in addition to self-lubrication of the polyamideimide resin 1 excellent in machinability, lubrication of complete fluoridized oil which is impregnated in the connected pores 2 and gradually oozes out on the surface layer portion and which is excellent in heat-resistance and chemical resistance under the conditions of low vapor pressure and low drift point is added to obtain long-life lubrication which can not be obtained by just oiling. |
