Universal
Joint A double-pivoted connection for transmitting power
from a driving to a driven shaft through an angle. A U-joint consists
of two Y-shaped yokes and a cross-shaped member called the spider.
The
Universal joint (U-joint) connects the drive shaft to the
transmission output shaft and the differential pinion gear shaft.
This joint must be flexible enough to allow changes in the driving
angle (road incline) and the drive shaft. This way, the torque is
constantly transmitted when the rear axle is moving up and down.
Smaller U-joints are used to route the turning motion of the steering
wheel through the steering column to the steering box. There are two
types of U-joints, the cross and roller type and the ball and
trunnion type. The cross and roller type is used the most; it allows
the drive shaft to bend. The ball and trunnion type less frequently
used; it allows the drive shaft to bend and also permits backward and
forward motion of the drive shaft.
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- in some common emergencies - not to make you an expert in auto mechanics
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I am in no way, shape,
or form telling you to do this yourself. Your results may vary. If
something goes wrong, it is not my fault! These are just guidelines.
