The first evidence of carts, wheel, cars or their models, there is from the second half of 4th millennium BC. BC. Between northern Germany and Mesopotamia, z. B. In Northern Europe under the Funnel Beaker Culture and the Baden culture, in foothills of Alps in northwest and the Southern Caucasus (Maikop culture), in Mesopotamia and the Indus Valley Civilization (Karaoke on 4 Wheels).
As the material only wood was used for thousands of years. The first spoke wheel had bronze spoke, later in Bronze Age and then outweighed wooden spoke wheel only involving the rubbing on the inner surface of axle hub and the outer race of rim with metal was misty. Advances in metallurgy towards ever more stable metals found then also use.
Not until the invention of steam engine and the internal combustion engine, which led to higher transport services and speeds, the wheel were completely in iron and later steel plate welded together designed as rim. The lubricated hub sleeves were replaced by roller bearings. Wheel for low loads were provided in lightweight construction with wire spokes that are biased and loaded on train.
One of four in Glum, community Wardenburg in district of Oldenburg, found one-piece wheel from the Bronze Age had a scouring furrow, which was not incorporated throughout the turning circle. It was caused by the wagon body, which wore down the wrong current wheel. A shorter groove on the other hand shows that the wheel has attached also rotated.
A little earlier or at the same time also provided with bearings, rapidly rotating potter's wheel was known. An indication that the machine element and plain bearings was now well controlled: lubrication and minimize play. The first transport devices with which you could carry loads on land without wearing them were carriage and rod grinding.
Today, hard rubber tires are used on steel wheel as training wheel for. As for tracked vehicles, for carousels for cable cars and chairlifts or industrial vehicles such as forklifts. Plastic wheel with or without metal hub or bearings, often without tires are available for mobile tables, ladders (also above), Furniture, Pallet Trucks for euro-pallets and shopping carts (even with ridges for clawing on moving walkways).
Already in Stone Age began to reduce the heavy weight of disc wheel through grooves. Whether the fluted with symbolic patterns wheel, however, were suitable for transporting loads, is doubtful. A metal-temporal invention was the spoke, which was introduced around 2000 v. Chr. In Orient. With the stable and lightweight spoked wheel was built so-called chariot, so two-wheeled vehicles that would really be called carts. Since it was a good way to reduce the weight even more demanding wheeled tractors were built later.
Become wheel by means of bearings rotating on axes - now mostly only journal - mounted a vehicle, a substantial reduction in friction forces and thus energy is thus compared to grind the transportable object over a distance to be traveled or saving transport of heavy goods . A fast movement of goods and people, primarily on relatively flat paths obtained.
As the material only wood was used for thousands of years. The first spoke wheel had bronze spoke, later in Bronze Age and then outweighed wooden spoke wheel only involving the rubbing on the inner surface of axle hub and the outer race of rim with metal was misty. Advances in metallurgy towards ever more stable metals found then also use.
Not until the invention of steam engine and the internal combustion engine, which led to higher transport services and speeds, the wheel were completely in iron and later steel plate welded together designed as rim. The lubricated hub sleeves were replaced by roller bearings. Wheel for low loads were provided in lightweight construction with wire spokes that are biased and loaded on train.
One of four in Glum, community Wardenburg in district of Oldenburg, found one-piece wheel from the Bronze Age had a scouring furrow, which was not incorporated throughout the turning circle. It was caused by the wagon body, which wore down the wrong current wheel. A shorter groove on the other hand shows that the wheel has attached also rotated.
A little earlier or at the same time also provided with bearings, rapidly rotating potter's wheel was known. An indication that the machine element and plain bearings was now well controlled: lubrication and minimize play. The first transport devices with which you could carry loads on land without wearing them were carriage and rod grinding.
Today, hard rubber tires are used on steel wheel as training wheel for. As for tracked vehicles, for carousels for cable cars and chairlifts or industrial vehicles such as forklifts. Plastic wheel with or without metal hub or bearings, often without tires are available for mobile tables, ladders (also above), Furniture, Pallet Trucks for euro-pallets and shopping carts (even with ridges for clawing on moving walkways).
Already in Stone Age began to reduce the heavy weight of disc wheel through grooves. Whether the fluted with symbolic patterns wheel, however, were suitable for transporting loads, is doubtful. A metal-temporal invention was the spoke, which was introduced around 2000 v. Chr. In Orient. With the stable and lightweight spoked wheel was built so-called chariot, so two-wheeled vehicles that would really be called carts. Since it was a good way to reduce the weight even more demanding wheeled tractors were built later.
Become wheel by means of bearings rotating on axes - now mostly only journal - mounted a vehicle, a substantial reduction in friction forces and thus energy is thus compared to grind the transportable object over a distance to be traveled or saving transport of heavy goods . A fast movement of goods and people, primarily on relatively flat paths obtained.
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