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Autobesity, also known as car bloat and truck bloat, is the trend, beginning in about the 1990s, [4] of cars increasing in average size and weight. [5] [6] The average weight of cars sold in Europe increased by 21% between 2001 and 2022. [7] In the United States, SUVs and pickup trucks comprised more than 75% of new sales in 2024 compared to 38 ...
Torsion bar suspension inside Leopard 2 Schematic of a front axle highlighted to show torsion bar. A torsion bar suspension, also known as a torsion spring suspension, is any vehicle suspension that uses a torsion bar as its main weight-bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
A strut bar, strut brace, or strut tower brace (STB) is an automotive suspension accessory on a monocoque or unibody chassis to provide extra stiffness between the strut towers. With a MacPherson strut suspension system where the spring and shock absorber combine in one suspension unit, which also replaces the upper control arm, the entire ...
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When empty, this car measures 231 ft (70 m) long; for comparison, a conventional boxcar currently operating on North American railroads has a single two-axle truck at each end of the car, measures 50 to 89 feet (15.24 to 27.13 m) long and has a capacity of 70 to 105 short tons (64 to 95 t; 63 to 94 long tons). The train's speed is limited to 25 ...
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Diagram of two types of adjustable antiroll bars. Some anti-roll bars, particularly those intended for use in auto racing, are externally adjustable while the car is in the pit, whereas some systems can be adjusted in real time by the driver from inside the car, such as in Super GT. This allows the stiffness to be altered, for example by ...