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Also like the P Motors they used advanced nose suspended traction motors and the R-2s were some of the first North American locomotives to make use of the C-C wheel arrangement, which later became the standard for diesel electric road freight. The first R Motor was developed as a response to the Kaufman Act which banned steam locomotive use ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
Otherwise "identical" traction motors can have significantly different load rating. A traction motor geared for freight use with a low gear ratio will safely produce higher torque at the wheels for a longer period at the same current level because the lower gears give the motor more mechanical advantage.
The EMD SW1500 is a 1,500 hp (1,119 kW) diesel-electric switcher locomotive built by General Motors' Electro-Motive Division from 1966 to 1974. [1] The SW1500 replaced the SW1200 in the EMD product line.
However, there is a manual override switch that allows the engineer to run the engine with all 4,400 hp (3,300 kW) if necessary. As with the C40-9, Norfolk Southern began to upgrade their C40-9W's from 4,000 to 4,400 hp and AC traction in mid-2015, making them AC44C6M's as well. Power output: 4,000 hp (2,980 kW)
The EMD GT26 Locomotive Series made their debut in 1967 after the rise in popularity of the American EMD SD40.Designed to meet most First World, Second World and Third World countries, the GT26 Series were now equipped with a turbocharged high horsepower EMD 645 Series engine as well as six axle HT-C trucks to provide better traction effort at slow speeds.
The converters are water cooled and have individual inverters for each traction motor (Bombardier MITRAC DR 3700F series). [ citation needed ] Power at rail is increased to 7,500 hp (5,600 kW) and top speed is increased to 125 miles per hour (201 km/h), [ 8 ] though NJ Transit limits them to 100.
An Aveling and Porter traction engine-based railway locomotive, as used by Holborough Cement Co. Several traction engine builders (such as Aveling and Porter [39] and Fowler) built light railway locomotives based on their traction engines. In their crudest form these simply had flanged steel wheels to enable them to run on rails.