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This is an example of a "dead axle". A "live axle" not only connects two wheels, but also drives them. A beam axle, rigid axle, or solid axle is a dependent suspension design in which a set of wheels is connected laterally by a single beam or shaft. Beam axles were once commonly used at the rear wheels of a vehicle, but historically, they have ...
De Dion rear axle. A de Dion axle is a form of non-independent automobile suspension. It is a considerable improvement over the swing axle, Hotchkiss drive, or live axle. [1] Because it plays no part in transmitting power to the drive wheels, it is sometimes called a "dead axle". [2]
A high RTI or good axle articulation is essential for good off road performance on severe routes if the vehicle has open diffs. A vehicle that has good axle articulation can keep all wheels in contact with the ground while traversing obstacles, which ensures that all wheels can deliver their torque to the surface with less risk of losing traction on any given wheel.
The M1 had a ladder frame with three live beam axles, the front on leaf springs, the rear tandem on leaf springs with locating arms. All models had a 181 in (4.60 m) wheelbase. The M1 weighed 27,330 lb (12,400 kg), the -A1 31,200 lb (14,200 kg). Brakes were full air, the tires were 11.00x20 with dual rear tires.
Unsprung mass is a consideration in the design of a vehicle's suspension and the materials chosen for its components. Beam axle suspensions, in which wheels on opposite sides are connected as a rigid unit, generally have greater unsprung mass than independent suspension systems, in which the wheels are suspended and allowed to move separately.
A tandem axle is defined as two or more consecutive axles whose centers are spaced more than 40 inches (102 cm) but not more than 96 inches (244 cm) apart. [10] Axles spaced less than 40 inches (102 cm) apart are considered a single axle. [11] In effect, the formula reduces the legal weight limit for shorter trucks with fewer axles (see table below
Some vehicles with live-axle suspensions cannot use a Watt's linkage due to design or other practical constraints; these often incorporate a Panhard rod as a component of the front suspension. The Mercedes-Benz G-Class was redesigned in 2018 to include a Panhard rod on the rear axle to improve its on-road handling characteristics.
An active suspension is a type of automotive suspension that uses an onboard control system to control the vertical movement of the vehicle's wheels and axles relative to the chassis or vehicle frame, rather than the conventional passive suspension that relies solely on large springs to maintain static support and dampen the vertical wheel movements caused by the road surface.