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Wheel Load Capacity – all of our wheels have been tested and are able to carry the specified load capacities. Look for thesymbol. Weight bearing abilities can be affected by floor surfaces and amount of use overtime. Overloading wheels will cause them to fail! A version of the above examples (name unknown to the writer) was commonly used on heavy artillery during World War I. Specific examples: Cannone da 149/35 A and the Big Bertha. These were panels that were connected to each other by multiple hinges and could be installed over a contemporary wheel. Wheels are essential parts of a car, and alloy wheels are essential styling parts which make the difference between ordinary and show-stopping. Available in all kinds of colours and designs, alloy wheels are a sure-fire enhancement to make sure your car stands out from the crowd.
A wheel can also offer advantages in traversing irregular surfaces if the wheel radius is sufficiently large compared to the irregularities. Aboriginal Australians traditionally used circular discs rolled along the ground for target practice. [34] Wheel Type – Wheels can be simply categorised into 2 types, soft tread wheels and hard tread wheels. The general principle is hard tread wheels on softer floor surfaces, and soft tread wheels on harder floor surfaces. This principle reduces the rolling tractive resistance and makes the wheels easier to move. wheel". Online Etymology Dictionary. Archived from the original on 3 July 2017 . Retrieved 28 March 2007. winter wheels. Alternatively, you are welcome to browse wheels by car or brand. If you can’t find what your looking for, feel free to give us a call on 01702 680900 or
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Copper Age): invention of the potter's wheel; earliest solid wooden wheels (disks with a hole for the axle); earliest wheeled vehicles; domestication of the horse Singer, Ben (May 2005). A brief history of the horse in America. Canadian Geographic Magazine. Archived from the original on 19 August 2014.
Additional energy is lost from the wheel-to-road interface. This is termed rolling resistance which is predominantly a deformation loss. It depends on the nature of the ground, of the material of the wheel, its inflation in the case of a tire, the net torque exerted by the eventual engine, and many other factors.
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The Halaf culture of 6500–5100BCE is sometimes credited with the earliest depiction of a wheeled vehicle, but this is doubtful as there is no evidence of Halafians using either wheeled vehicles or even pottery wheels. [12] Precursors of pottery wheels, known as "tournettes" or "slow wheels", were known in the Middle East by the 5th millenniumBCE. One of the earliest examples was discovered at Tepe Pardis, Iran, and dated to 5200–4700BCE. These were made of stone or clay and secured to the ground with a peg in the center, but required significant effort to turn. True potter's wheels, which are freely-spinning and have a wheel and axle mechanism, were developed in Mesopotamia ( Iraq) by 4200–4000BCE. [13] The oldest surviving example, which was found in Ur (modern day Iraq), dates to approximately 3100BCE. [14] Wheels of uncertain dates have also been found in the Indus Valley civilization, a 4th millennium BCE civilization covering areas of present-day India and Pakistan. [15] The spoked wheel was invented more recently and allowed the construction of lighter and swifter vehicles. The earliest known examples of wooden spoked wheels are in the context of the Sintashta culture, dating to c. 2000BCE ( Krivoye Lake). Soon after this, horse cultures of the Caucasus region used horse-drawn spoked-wheel war chariots for the greater part of three centuries. They moved deep into the Greek peninsula where they joined with the existing Mediterranean peoples to give rise, eventually, to classical Greece after the breaking of Minoan dominance and consolidations led by pre-classical Sparta and Athens. Celtic chariots introduced an iron rim around the wheel in the 1st millenniumBCE. Attema, P. A. J.; Los-Weijns, Ma; Maring-Van der Pers, N. D. (December 2006). "Bronocice, Flintbek, Uruk, Jebel Aruda and Arslantepe: The Earliest Evidence of Wheeled Vehicles in Europe and the Near East". Palaeohistoria. University of Groningen. 47/48: 10-28 (19-20). ISBN 9789077922187. Archived from the original on 22 August 2020 . Retrieved 1 May 2019.
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