“三层复合材料汽车万向节轴承的应用技术研究”技术鉴定会,于1985年12月下旬在北京召开。会议由机械工业部机械研究院主持。参加会议的有中国汽车工业公司技术发展部、北京钢铁研究院、第一汽车制造厂、济南重型汽车联营公司、青岛汽车万向节厂、兰州化学物理研究所、辽源市复合材料轴承厂、大安轴承厂等18个单位。向会议提供的技术文件表明,三层复合材料汽车万向节轴承的使用寿命达到5万公里以 “Three-layer composite materials automotive universal joint bearing technology research” technical appraisal meeting, in late December 1985 held in Beijing. The meeting was presided over by Machinery Research Institute of Ministry of Machinery Industry. The meeting was attended by the technical development department of China Automotive Industry Corporation, Beijing Iron and Steel Research Institute, No.1 Automobile Factory, Jinan Heavy Vehicle Associates, Qingdao Wanqiu Automotive Factory, Lanzhou Institute of Chemical Physics, Liaoyuan Composite Bearing Factory, Daan Bearing Factory 18 units. The technical documents provided to the conference show that the service life of the three-layer composite automotive universal joint bearings reaches 50,000 km