Tag Archives: Maple Ridge

Universal Joints

Although it would be desirable to have the drive shaft in line with the engine crankshaft, this design is not practical. In the first place, the wheels move up and down because of road irregularities. Second, the frame moves up and down in relation to the wheels. How much it moves depends on the amount of weight in the automobile body and the limits of the suspension springs and linkage. So a compromise is made, and the “workable” design is intended to provide a line of drive as straight as possible under average conditions.

The universal joints, Fig. 46-2, serve to compensate for changes in the line of drive by transmitting power from a driving shaft. Most cars use two or three universal joints in the drive line between the transmission and differential, Fig. 46-3.

wpg2 300x126 Universal Joints

Coqutilam Maple Ridge Dodge Grand Caravan

Wpg Auto

www.wpgauto.com

Drive Line, Universal Joints, Differentials

In basic passenger car design, the drive line connects the transmission with the driving axles. In effect, it transmits engine power to the driving wheels.

Ordinarily, the engine is mounted on the frame, and the driving wheels are free to move up and down in relation to the frame. In between, the angularity of the line of drive is constantly changing. This means flexibility is needed in the drive system and, usually, it is provided by universal joints. See Figs. 46-1 and 46.2.

 

wpg1 251x300 Drive Line, Universal Joints, Differentials

Coqutilam Maple Ridge Dodge Grand Caravan

Wpg Auto

www.wpgauto.com