Toe-in: front wheels seem to roll towards each other
collapse. Camber is the tilt of the wheels relative to the vertical. Camber reduces the transmission of shocks to the steering parts, in addition, it allows you to reduce the effort applied to turn the wheel and the friction of the wheels on the road. The front wheels are mounted with positive camber, that is, the upper parts of the wheels are slightly more apart than the lower ones,
The transverse tilt of the kingpin. The transverse inclination of the kingpin is the inclination of the axis of the kingpin relative to the vertical. If you mentally continue the center line of the king pin to the ground and measure the distance to the center line of the wheel (to the midpoint of the bearing area of the tire), then the running-in shoulder is obtained. To reduce parasitic forces in steering, the break-in arm should be as small as possible. In addition, the lateral inclination of the kingpin, combined with the longitudinal inclination, causes the car to rise slightly when the wheels are turned. When you release the steering wheel, the wheels return to the center position (restoring moment).
Wheel alignment angles: A: king pin pitch, B: camber, C: king pin pitch
Longitudinal inclination of the kingpin. Kingpin pitch is the distance (in the direction of travel) between the imaginary center line of the kingpin extended to the ground and the midpoint of the bearing area of the tire. Due to the caster angle, the wheels are pulled rather than pushed, so they tend to take and maintain a straight position.
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