Lesson 1/Learning Event 2
FIGURE 10. CAMBER ANGLE.
The camber angle is determined by viewing the wheels from the front. If the
wheels are tilted out at the top, they have positive camber. If they are
tilted in, they have negative camber. The camber angle is measured in
degrees. It is shown by drawing one line through the center of the wheel
and then drawing a second line straight up and down so that it crosses the
first. Camber is obtained by having the wheel spindle pointed downward at
the outer end.
Originally, roads were built with high crowns; that is, they were high in
the middle and sloped downward to the sides. A large amount of positive
wheel camber was needed so that the tire would contact the road squarely.
If the tire does not set squarely on the road, it will wear on one side and
will not get a good grip for positive steering control. Modern roads,
however, are made flat with very little crown, so very little camber is
needed for this purpose on modern vehicles.