Leaf spring
Videos
A leaf spring is a simple form of spring commonly used for suspension in wheeled vehicles. Originally called a laminated or carriage spring, and sometimes referred to as a semi-elliptical spring, elli
A traditional semi-elliptical Hotchkiss leaf spring arrangement. On the left, the spring is connected to the frame through a shackle.
Each side of this rear axle is suspended by a leaf spring. The front eye of each leaf spring is secured to the frame; the rear eye is attached by a shackle that pivots to allow the spring to lengthen as it flexes.
Three-quarter-elliptic leaf spring on a carriage.
Semi-elliptic
Unsprung mass
Videos
The unsprung mass of a vehicle is the mass of the suspension, wheels or tracks, and other components directly connected to them. This contrasts with the sprung mass supported by the suspension, which
In this simplified diagram the wheels, tires, and suspension are all part of the vehicle's unsprung weight, with only its one-piece chassis/body constituting its sprung weight