Casos de Estudio
Ensuring Smooth Railway Traffic with the THU Locknut
Recurring fastener loosening at a busy railway diamond meant daily inspections. See how THU Locknuts solved the problem and maintained reliability in extreme conditions.
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How it Works
J.Lanfranco Locknut Installation
Recognized in the industry as the world’s best locknut, the J. Lanfranco design combines an all-metal, reusable design with dual self-locking slots that prevent thread damage and deliver consistent torque independent of bolt tension.
Casos de Estudio
Eliminating Loose Bolts on a Class 1 Double Diamond with THU Locknuts
A busy Class 1 double diamond faced frequent loose and seized bolts, causing weekly maintenance headaches and high costs. J.Lanfranco THU locknuts provided predictable locking, eliminated weekly replacements, and saved $50,000 in six months.
Casos de Estudio
Securing Railway Cover Boards Against Vibration
Vibration and collector shoe tension caused loose fasteners on power rail cover boards, risking safety and service disruptions. ERM locknuts provide a reliable, easy-to-install solution that keeps cover boards secure under daily train operations.
Casos de Estudio
Eliminating Bolted Joint Failures in Cement Ball Mills
Sustained vibration and extreme temperatures make bolted joint failures a constant risk in cement production. A large European cement producer eliminated fastener-related downtime by installing J.Lanfranco ESL self-locking locknuts on critical ball mill assemblies.
Casos de Estudio
Rebuilding a Collapsed Railway Bridge with the ESL Locknut
When a major railway bridge collapsed under heavy freight traffic, the failure wasn’t visible bolt loosening—it was silent clamp force loss.