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A severe flat spot on a rail wheel. A flat spot, or wheel flat, also called spalling or shelling, is a fault in railroad wheel shape. A flat spot occurs when a rail vehicle's wheelset stops rotating while the train is still in motion, causing part of the wheel to ablate against the hard steel of the rails.
Automatic free wheeling hub of a 1986 Mitsubishi Pajero Mechanically (manually) activated free wheeling hub on a Toyota Land Cruiser J60 from the 1980s, with marked turning positions free and lock. Locking hubs, also known as free wheeling hubs are fitted to some (mainly older) four-wheel drive vehicles, allowing the front wheels to rotate ...
The most grievous flaw in the design is inherent in the modern construction of steering wheels; thieves can defeat this type of lock by making a cut through the steering wheel's outer rim, allowing the device to be removed. This does, however, require access to a hacksaw or other cutting tool, and ruins the steering wheel.
An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles, such as cars, motorcycles, trucks, and buses. [1] ABS operates by preventing the wheels from locking up during braking, thereby maintaining tractive contact with the road surface and allowing the driver to maintain more control over the ...
A steering-wheel lock is a visible anti-theft device. A steering-wheel lock is a visible anti-theft device [1] [2] that immobilizes the steering wheel of a car.. Also known as a crook lock, [3] or club lock, [4] the first generation of steering-wheel locks, known as canes, [5] consisted of a lockable bar that connected the steering wheel to the brake pedal or clutch pedal.
While later models went some way to fixing the problems, the combination of negative word-of-mouth and diminishing sales figures eventually led to the Camira's withdrawal in 1989. The Royal Automobile Club of Victoria, Drive.com.au, CarsGuide and Wheels magazine all selected the Camira as one of the worst cars or worst Australian cars of all time.
Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. [1] [2] [3] They can be used on small vehicles such as ride-on lawn mowers and motorized golf carts. They also are used on heavy equipment required to operate on sites where risk of tire punctures is high.
Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.