Class 91 track tests to measure rota bolt and traction rod strains (RR-STR-96-038)

Tests have been conducted on an in-service Class 91 to measure the rota-bolt and traction rod brackets strains and traction rod loads. The measurements indicate that the predominant load on the bolts is due to centrifugal forces. However, the strains are unlikely to result in premature bolt failure. No reduction...