Diesel Locomotive Wheel Axle

The "wheels" on a diesel locomotive, are arranged in pairs of axles connected together by frames known as trucks, bogies, or simply "axles".
They can be arranged in several different ways, can can also be powered mechanically by levers and gears to make the locomotive move, or powered electrically by AC or DC currents.
The wheels of a diesel locomotive often share or have gears, levers, or rods which connect to the brakes and engine, which makes the actual locomotive move.
==Sources==
*Pacific Southern Railway Museum.org
Category:Encyclopedic articles