torsion bar

English

schematic of torsion bar, rigidly attached to gray rectangle representing, say, a vehicle frame, twisted under load from green lever arm which would in turn be attached to an axle

Noun

torsion bar (plural torsion bars)

1. A bar forming part of a vehicle's suspension system, that twists in response to the non-rotary motion of the wheels, absorbing vertical movement.

References

• torsion bar on Wikipedia.Wikipedia
• Category:torsion bar suspension on Wikimedia Commons.Wikimedia Commons