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A swivel caster with a wheel lock. The vertical swivel on this type of caster cannot be locked in position. Caster central locking mechanism on an old Stryker hydraulic stretcher. Shown in the locked position with the center cam rotated downward. Common inexpensive casters may include a brake feature, which prevents the wheel from turning. This ...
He also borrowed a 'single-wheeler' from the Great Eastern Railway and, in 1868, designed two versions of a 2-2-2 arrangement with 7 ft 1 in (2.159 m) driving wheels. [3] The outcome in 1870 was a locomotive with 8 ft 1 in (2,460 mm) driving wheels, designed specifically for high-speed expresses between York and London. The British norm at the ...
The wheel rate is calculated by taking the square of the ratio (0.5625) times the spring rate, thus obtaining 281.25 lbs/inch (49.25 N/mm). The ratio is squared because it has two effects on the wheel rate: it applies to both the force and the distance traveled. Wheel rate on independent suspension is fairly straightforward.
Its hubless wheels are made from former truck tires, and a chain-driven friction drum provides power and brake force. [6] Designed "for casual cruising and slow ride-bys at shows", it consists of a 996 cc (60.8 cu in) fuel-injected Suzuki 4-stroke engine [7] in a steel frame covered by a fiberglass body with electroluminescent wire lighting. [8]
However, due to the weight transfer inherent while turning, the outside wheels bear more of the force of turning and negative camber will improve handling overall. Caster angle will also compensate for this to a degree, as the top of the outside tire will tilt slightly inward, and the inner tire will respectively tilt outward. However, any ...
Riding a caster board requires using a twisting motion of hips and legs. A rider or "caster boarder" gains speed because each wheel is mounted on a 30° slant on the bottom of each deck. When each deck is pushed to the side, it causes the board to be pushed upward by the wheels' rotation against the gradient of the mounts.