unsprung weight


Also found in: Wikipedia.

unsprung weight

[¦ən′sprəŋ ′wāt]
(mechanical engineering)
The weight of the various parts of a vehicle that are not carried on the springs, such as wheels, axles, and brakes.
References in periodicals archive ?
crucial unsprung weight that is essential to offering a more direct feel through the steering as well as reducing the neces- sary pedal travel.
With a reduced unsprung weight, Porsche says the tyres trail the surface of the road better and are perfectly optimised for absorbing longitudinal and lateral forces.
However, because the component adds to a car's unsprung weight, reducing weight was desirable.
Placing a motor on each wheel increases the unsprung weight and unravels all of the vehicle handling performance improvements that have been made by reducing unsprung weight over the years.
Wheels can completely transform the look of a car and fitting lighter and wider wheels can reduce unsprung weight and improve handling.
A fixture on racing cars competing in the highest levels of motorsport in events such as the 24 Hours of Le Mans, carbon-ceramic brake rotors offer exceptional braking performance and unsprung weight reductionnearly 52 lbs.
Extensive use of aluminium reduces unsprung weight improving both ride quality and handling too, both things Jaguar are renowned for.
The main disadvantages of a standard wheelset are significant unsprung weight (1500 / 5000 kg) acting on the contact wheel-to-rail surfaces and the rigid connections concerning the coordinate rotation between points on the surface of wheels between the coordinate points of rotation of the wheel contacting with surfaces of rails [1, 2].
This A6 improved that situation by taking crucial unsprung weight out of the suspension system by using aluminium components and also offering the option of adaptive air suspension with controlled damping.
The vehicle has a curb-weight reduction of more than 200 pounds and engineers were able to decrease unsprung weight by scaling the wheels, tyres and brakes for the lighter vehicle.
Unsprung weight is reduced by the adoption of new 19-inch forged aluminium wheels -- available in three variants - which minimise tire/wheel assembly mass and maximise rigidity.