4WD basics
 




Why wheels have a need for individual rpm

As long as a car goes straight all wheels rotate at equal speeds (rpm).

Cars need to make turns. In a turn the inside wheels need to rotate less than the outside wheels.

A solution is needed.


The differential

A differential is able to split the rotations delivered by the drive shaft either equally or proportional to left and right as needed.

The differential is a mechanical device that reacts to resistance. The inside wheel, by following a smaller circle, puts up resistance. The differential reacts to this resistance and allows it to rotate less. At the same time the outside wheel is allowed to rotate faster by the same rate the inside wheel rotates less.

Remember that the differential reacts to resistance - that behavior creates an unwanted effect that needs control.
So, why do axles have a need for individual rpm?


more

 




4x4abc.com :: 4WD 101 :: Jeep 101 :: 4x4 Training :: SUV Trips

rubicon-trail.com :: baja101.com :: baja.com

JimRogers :: M-Class :: G-Class

contact


Copyright © 2002-2008 Harald Pietschmann