Let’s start off with a swing-arm suspension system. This is where the arms are pivoted at or near the centre of the car.
When the wheel passes over an obstacle on the road (like this red rock), the wheel rises, pivoting around the inner point. You can see that the camber of the wheel (the angle it makes to the vertical) changes a great deal - that’s one of the negatives of this type of suspension system when being used on most (but not all) types of vehicles.
The length of the arm around which the wheel is pivoting (shown here in purple, and drawn to the centre of the wheel) is, as you’d expect, called the ‘swing-arm length’. The longer the swing-arm, the less the camber of the wheel changes for a given size of bump.
Let’s start off with a swing-arm suspension system. This is where the arms are pivoted at or near the centre of the car. When the wheel passes over an obstacle on the road (like this red rock), the wheel rises, pivoting around the inner point. You can see that the camber of the wheel (the angle it makes to the vertical) changes a great deal - that’s one of the negatives of this type of suspension system when being used on most (but not all) types of vehicles.The length of the arm around which the wheel is pivoting (shown here in purple, and drawn to the centre of the wheel) is, as you’d expect, called the ‘swing-arm length’. The longer the swing-arm, the less the camber of the wheel changes for a given size of bump.
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