Torsion Bar

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torsion bar

[′tȯr·shən ‚bär]
(mechanical engineering)
A spring flexed by twisting about its axis; found in the spring suspension of truck and passenger car wheels, in production machines where space limitations are critical, and in high-speed mechanisms where inertia forces must be minimized.

Torsion Bar


a bar that operates by twisting and acts as a spring. Torsion bars are manufactured from heat-treated steel, which tolerates great torsional stress and twisting through large angles (tens of degrees). They are used mainly in vehicle suspensions and multistage reducers to equalize the torque between parallel gears.

References in periodicals archive ?
Caption: This cutaway drawing of a Piranha 10x10 shows the combination of trailing arms and torsion bars for the fixed axles and MacPherson struts on the steered axles.
A new austempered ductile iron torsion bar adjuster concept also has been developed.
The Torsion Bar Tailgate design is patented by WOTCO.
Consisting of two platforms with a sure grip-tape deckplate design and joined by an anodized torsion bar.
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Less powerful versions, though, get a simpler torsion bar set-up (used on the 1.
It features a suspension setup with a solid torsion bar to the front and semi elliptical leaf spring to the rear.
David Dutko, who helped develop the integrated torsion bar for the rear suspension, once worked for racing teams.
It will also use that car's platform and torsion bar rear suspension as well as updated versions of the 1.
Also hit the torsion bar bearings, the opener track and any other pivot points.