The TSA gearbox is designed for Stadler Rail GTW DMUs, specifically for eBART and FGC (Ferrocarrils de la Generalitat de Catalunya) operations in Spain and the USA. It features a two-stage spur gear for a semi-suspended drive, with a gearbox housing that includes a side cover.Connection from motor to gearbox: Membrane couplingConnection from gearbox to wheelset axle: Wedge package coupling (single level)Gear ratio: 5.46Axle load: 21.0 tWheel diameter new/worn: 870/800 mmMaximum vehicle speed: 140 km/hMaximum starting tractive effort: 40.0 kNRated power: 300 kWTotal mass including couplings: 700 kgSuitable for traction motor: TMF 50-29-4Cooling: Forced ventilation, air-cooled, open design (IP6K9K)