Torsion trailer axle is a kind of trailer suspension which is different from leaf spring trailer suspension. The rubber rods in the torsion axles play the role of shock absorption. There are four rubber rod in the torsion axles. The function of the rubber rod is equivalent to the leaf spring. The torsion trailer axles absorb shocks through these rubber rod.
The torsion trailer axle are widely used on boat trailers, car trailers, animial trailers and motorbike trailers.