car RC and kol 7aga RC

Camber angle

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A wheel with a negative camber angle

Camber angle is the angle between the vertical axis of the wheel and the vertical axis of the vehicle when viewed from the front or rear. If the top of the wheel is further out than the bottom (that is, away from the axle), it is called positive camber; if the bottom of the wheel is further out than the top, it is called negative camber.

Camber angle alters the handling characteristics of a car. As a general rule, increasing negative camber improves grip on that wheel when cornering (within limits). This is because it gives the tire that is taking the greatest proportion of the cornering forces, a more optimal angle to the road, increasing its contact patch and transmitting the forces through the vertical plane of the tire, rather than through a shear force across it. Another reason to have negative camber is that a rubber tire tends to roll on itself while cornering. If the tire had zero camber, the inside edge of the contact patch would begin to lift off of the ground, thereby reducing the contact patch. By applying negative camber, this effect is reduced, thereby maximizing the contact patch.

On the other hand, for maximum straight-line acceleration, obviously the greatest traction will be attained when the camber angle is zero and the tread is flat on the road. Proper management of camber angle is a major factor in suspension design, and must incorporate not only idealized geometric models, but also real-life behavior of the components: flex, distortion, elasticity, etc.

Most RC race cars have some form of double wishbone suspension which allow you to adjust camber angle (as well as camber intake).

Camber Intake