目前,我国摩托车工业已初步形成了较为完整的生产和技术体系,基本上跨过了以进口散件组装为主的初级阶段,正在向联合研制发动机、开发新车型的新阶段发展。发动机曲轴轴承是摩托车关键部件的重要配套件,其品质和性能的好坏直接影响着发动机和整台摩托车的品质性能。以前,国内没有厂家正式批量生产,大多数摩托车,尤其是高档 At present, China’s motorcycle industry has initially formed a relatively complete production and technical system, basically crossed the initial stage of the import-based assembly of spare parts, and is now developing to a new stage of jointly developing the engine and developing new models. Engine crankshaft bearings are the key parts of the motorcycle ancillary components, the quality and performance of a direct impact on the quality of the engine and the entire motorcycle performance. In the past, there was no official domestic mass production, most motorcycles, especially high-end