The upper arm andthe bicycle shock absorber spring mounts

mono shock absorber motorcycle bicycle shock absorber

There are a lot of variations on this theme appearing atthe moment, with huge differences in the numbers and complexities of joints,numbers of arms, positioning of the parts etc. Note that in this system the spring (red) mono shock absorber motorcycle is separate from the shockabsorber (yellow).

Unless thelinks are infinitely long the scrub motion is always present. The only real differencebetween this and the previous system mentioned above is that the spring/shockcombo is moved from between the arms to above the upper arm.

This is the latest incarnation of thedouble wishbone system described above.

Find out more about Volvo control arm Chinamanufacturer by visit lemdor. The wheelspindles are supported by an upper and lower 'A' shaped arm. If you look head-on at this type of system,what you'll find is that it's a very parallelogram system that allows thespindles to travel vertically up and down.

 

The following three examples are allvariations on the same theme. It's currently being used in the AudiA8 and A4 amongst other cars. Thesecond and least important, but the one which produces most pub talk is thecamber angle, or lean angle. The basic principle of it is the same, butinstead of solid upper and lower wishbones, each 'arm' of the wishbone is aseparate item. This side-to-side motion is known as scrub. There are twoother types of motion of the wheel relative to the body when the suspensionarticulates.
Car manufacturers claim that this system gives even better road-holdingproperties, because all the various joints make the suspension almostinfinitely adjustable.

 

This is also a type of double-Aarm suspension although the lower arm in these systems can sometimes bereplaced with a single solid arm (as in my picture). Steer and camber are the ones which wear tyres. When they do this, they also have aslight side-to-side motion caused by the arc that the wishbones describe aroundtheir pivot points. This transfers theload-bearing capability of the suspension almost entirely to the upper arm andthe bicycle shock absorber spring mounts. but they are all fundamentallythe same. The lower arm in this instance becomes a control arm. Thisparticular type of system isn't so popular in cars as it takes up a lot room. The first and most important is a toe angle (steer angle).