Dictionary

gear ratio en · NOUN

Meanings

1. The ratio of the speeds of rotation of two gears, such as any pair that mesh and, especially, the initial and final gears in a gear train (whose relationship incorporates all the intermediate ones).
   • Two versions exist of the new locomotives, for passenger and for freight work respectively, the technical difference between the two lying in the gearing of the bogies; the passenger locomotives, in light green and pearl grey livery, have a 25:64 gear ratio to haul 12-coach, 450-ton trains at 87 m.p.h. on the level, and the freight locomotives, in the famiiar Italian brown livery, have a 20:69 gear ratio enabling them to move 1,500-ton freights on the level at a consistent 53 m.p.h., with a maximum of 68 m.p.h. 1962 October, “Beyond the Channel: Italy: New series of E646 electrics”, in Modern Railways, page 276:

Forms

Relateds

final drive · transmission · overdrive

Translations (9)

fr rapport de vitesses angulaires (ratio of the speeds of rotation) · fi välityssuhde (ratio of the speeds of rotation) · fi vaihdesuhde (ratio of the speeds of rotation) · fr rapport de transmission (ratio of the speeds of rotation) · cy cymhareb gêr (ratio of the speeds of rotation) · nl overbrengingsverhouding (ratio of the speeds of rotation) · is gírhlutfall (ratio of the speeds of rotation) · fr rapport d'engrenage (ratio of the speeds of rotation) · pl przełożenie (ratio of the speeds of rotation)