Nippon Seiko Co., Ltd. (Headquarters: Shinagawa-ku, Tokyo, Representative: Director, Representative Executive President, CEO Toshihiro Uchiyama, hereinafter referred to as NSK) successfully won the bid for the axle box bearings for TGV high-speed trains of SNCF (French National Railway Company). NSK officially won the bid for SNCF's axle box bearings for TGV trains. For a TGV train with a speed of 320km/h, the axle box bearing is an important part directly related to the safety of operation. Not only must it be fully reliable in various harsh environments such as dust, rain, and snow, but it must also be able to meet the durability requirements for long-term operation. NSK has carried out follow-up evaluation for up to 5 years to obtain the project. During this period, it passed various inspections by SNCF and successfully completed more than 1 million kilometers of real vehicle tests. Based on these good performances, in November 2016, NSK was officially listed as a qualified supplier of SNCF. Since the operation of the 0-series Shinkansen trains in 1964, NSK is the only company in Japan that has provided bearing products for all Shinkansen models, and has made positive contributions to the development of the Japanese railway industry. In recent years, NSK has also begun to provide bearing products for railway trains in China, South Korea and other countries around the world. These good application performance and the technical strength accumulated by NSK over the years are also important reasons for this bid. Axlebox bearings for TGV trains When the train is running, the axlebox bearings need to bear various forms of loads. Such as: the vertical load generated by the impact of the train passing through the line joint or switch, the lateral load generated by the train turning or tilting, etc. In order to adapt to these load conditions, NSK has optimized the material selection and internal design for the axle box bearings provided this time, supplemented by special sealing forms, etc. Realized high reliability and long-term operation durability.
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