COMPONENT OPERATION / Axle Function
• Purpose of Differential When the machine is steered, as the inner wheel turns with a smaller radius, the outer wheel needs to rotate faster for smooth steering. Suppose the rear wheel drives by directly installing the gear to the propeller shaft with a shaft having no differential. Suppose the rear wheel, with installing gear to propeller shaft directly is driven by the shaft having no differential. In this case, the outer wheel and the inner wheel rotate the same amount. So when the machine is steered, the outer wheel cannot rotate more than the inner wheel, and skidding sideways or tire wear takes place. As the axle shaft is subjected to torsional stress, transmission of drive force becomes unstable. On the other hand, in case a differential is installed, as the inner and the outer wheels can rotate at different rotating speeds, the problem mentioned above can be eliminated.
Extension Line of Rear Wheel Centers
In Turning of Machine
In Traveling of Machine on Rough Roads T202-03-05-005
T3-7-3