Difference between revisions of "UIC classification"
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The wheel arrangement on large diesel locomotives is described using the UIC classification system. Those in use on the SVR are as follows: | The wheel arrangement on large diesel locomotives is described using the UIC classification system. Those in use on the SVR are as follows: | ||
| − | * | + | *BB: Four powered axles all mounted in the locomotive's frame, driven in pairs, i.e. each pair of axles is connected by driving rods or gears. |
*Bo-Bo: Four axles in two individual bogies, all driven by their own traction motors. | *Bo-Bo: Four axles in two individual bogies, all driven by their own traction motors. | ||
| + | *C: Three powered axles all mounted in the locomotive's frame, all connected by driving rods or gears. | ||
*C-C: Two bogies or wheel assemblies under the unit. Each bogie has three powered axles, mechanically connected by driving rods or gears. | *C-C: Two bogies or wheel assemblies under the unit. Each bogie has three powered axles, mechanically connected by driving rods or gears. | ||
*Co-Co: Two six-wheeled bogies with all axles powered, with a separate motor per axle. | *Co-Co: Two six-wheeled bogies with all axles powered, with a separate motor per axle. | ||
Revision as of 22:15, 6 February 2015
The wheel arrangement on large diesel locomotives is described using the UICUnion Internationale des Chemins de fer (International Union of Railways) classification system. Those in use on the SVRSevern Valley Railway are as follows:
- BB: Four powered axles all mounted in the locomotive's frame, driven in pairs, i.e. each pair of axles is connected by driving rods or gears.
- Bo-Bo: Four axles in two individual bogies, all driven by their own traction motors.
- C: Three powered axles all mounted in the locomotive's frame, all connected by driving rods or gears.
- C-C: Two bogies or wheel assemblies under the unit. Each bogie has three powered axles, mechanically connected by driving rods or gears.
- Co-Co: Two six-wheeled bogies with all axles powered, with a separate motor per axle.
- 1Co-Co1: Two eight-wheeled bogies, with three axles (six wheels) powered by separate motors for each axle, and an additional unpowered axle at the outer end of each bogie to reduce the axle load (the weight resting on each axle).
The wheel arrangement on steam locomotives and small diesel locomotives is described using Whyte notation.
