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Development of Non-loosening Rail Fastening System with Leaf Spring Clip Applicable to Existing PC Sleeper

Last updated on 16 September 2025 12:56

Rail fastening systems using bolts and leaf spring clips are widely used in Japan. This rail fastening system requires regular maintenance to prevent the bolts from loosening. To eliminate the need for retightening bolts, some railway companies are replacing rail fastening systems using leaf spring clips with boltless rail fastening...

Author(s): Daiki Yamaoka; Tadashi Deshimaru; Shingo Tamagawa

Organisation(s): Railway Technical Research Institute (RTRI) ;

2025

Japan

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