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  1. The wheel and axle is a simple machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other. The wheel and axle can be viewed as a version of the lever, with a drive force applied tangentially to the perimeter of the wheel and a load force applied to the ...

    • History

      The Halaf culture of 6500–5100 BCE has been credited with...

    • Edit 18 June 2007
    • Wheel and Axle
    • Question
    • Important Question About Axle

    I removed the example of a wheel turning on a dead axle, because that is not a simple machine.Also removed the picture for the same reason. I will find a suitable picture in due course, if no-one beats me to it. 1. Not having much luck. There are a few pictures on the net of large wheel and axle mechanisms in the roofs of cathedrals that were used to lift the stones, they would be excellent examples if we could get one of those. Particularly because the wheel looks like a wheel, where most windlasses have a simple handle. Jimbowley 13:24, 6 November 2007 (UTC) 1.1. Finally found and uploaded a suitable uncopyrighted picture. Jimbowley (talk) 22:14, 9 May 2008 (UTC)

    I would like to make some minor revisions to this article. It seems the basic definition of a wheel and axle as a simple machine comes from its use in lifting machines to provide leverage to wind up ropes. While this is technically the source of the term, many also refer to gears as wheels and axle simple machines, while at the same time not calling wheels alone simple machines. I believe this is the problem with applying a Renaissance categorization scheme to modern machines. I recommend simply presenting wheels and their axles in various configurations as the fundamental machine elements that they are. It is historically correct to consider the wheel fixed to an axle that rotates in fixed bearings as a simple machine, but it is awkward and unnecessary to consider a wheel that rotates on bearings mounted on a fixed axle as a different and unrelated device. Prof McCarthy (talk) 06:06, 10 December 2011 (UTC) I hope these revisions to the article on the wheel and axle are acceptable....

    I see 2 categories: 'just a wheel' and 'wheel and axle'. From a mechanics view the wheel and axle is a force or velocity multiplier, or it turns a torque into a force, or vice versa. It is a machine and you can use it to increase your effort. Whereas a wheel is just a friction reducing device, you cannot do work with it. Undriven roadwheels are just wheels, but driven roadwheels are both categories because they are doing 2 functions at the same time which can confuse. And the gears in the gearbox are examples of wheel and axle, except for idler gears which are simply components of a machine but not machines themselves.Jimbowley (talk) 22:24, 8 July 2012 (UTC) ProfMcCarthy, Do you agree with my argument on simple machines:talk that a wheel on a bearing is not a machine? Jimbowley (talk) 22:24, 8 July 2012 (UTC) 1. In my opinion this is a question that shows you misunderstand the purpose of encyclopedias like Wikipedia. Encyclopedias are not one thing per article, they're one topic pe...

    I am questioning the functioning of any load carrying wheel so-called wheel before the invention of a metal axle, which would have prevented wood-rubbing-wood friction and a resulting fire. As important as this question is none of the axle, wheel or axle and wheel articles mentions it.Phmoreno (talk) 21:01, 25 September 2016 (UTC) 1. I found the answer to the axle question here: According to Bela Sandor, professor emeritus of engineering physics at University of Wisconsin at Madison: Phmoreno (talk) 18:38, 5 April 2017 (UTC)

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  3. › wiki › WheelWheel - Wikipedia

    A wheel is a circular component that is intended to rotate on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in ...

  4. Wheel. A wheel is a disc or circle -shaped mechanical device. Its main purpose is to allow things to roll; in other words, the wheel spins, and object on the wheels moves more easily along the ground. It is a simple machine. Most land vehicles roll on wheels. Wheels are often used in pairs, connected by a rod of wood or metal known as an axle.

  5. › wiki › AxleAxle - Wikipedia

    • Overview
    • Terminology
    • Vehicle axles
    • Structural features and design
    • Drive axle
    • Lift axle

    An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear to rotate around the axle. Sometimes, especially on bicycles, the latter

    On cars and trucks, several senses of the word axle occur in casual usage, referring to the shaft itself, its housing, or simply any transverse pair of wheels. Strictly speaking, a shaft which rotates with the wheel, being either bolted or splined in fixed relation to it, is called an axle or axle shaft. However, in looser usage, an entire assembly including the surrounding axle housing is also called an axle. An even broader sense of the word refers to every pair of parallel wheels on opposite

    Axles are an integral component of most practical wheeled vehicles. In a live-axle suspension system, the axles serve to transmit driving torque to the wheel, as well as to maintain the position of the wheels relative to each other and to the vehicle body. The axles in this system must also bear the weight of the vehicle plus any cargo. A non-driving axle, such as the front beam axle in heavy duty trucks and some two-wheel drive light trucks and vans, will have no shaft, and serves only as a sus

    A straight axle is a single rigid shaft connecting a wheel on the left side of the vehicle to a wheel on the right side. The axis of rotation fixed by the axle is common to both wheels. Such a design can keep the wheel positions steady under heavy stress, and can therefore support heavy loads. Straight axles are used on trains, for the rear axles of commercial trucks, and on heavy duty off-road vehicles. The axle can optionally be protected and further reinforced by enclosing the length of the a

    Splines on a front drive axle. See also: Drive wheel An axle that is driven by the engine or prime mover is called a drive axle. Modern front-wheel drive cars typically combine the transmission and front axle into a single unit called a transaxle. The drive axle is a split axle with a differential and universal joints between the two half axles. Each half axle connects to the wheel by use of a constant velocity joint which allows the wheel assembly to move freely vertically as well as to pivot w

    Dump truck with an airlift pusher axle, shown in the raised position See also: Federal Bridge Gross Weight Formula Some dump trucks and trailers may be configured with a lift axle, which may be mechanically raised or lowered. The axle is lowered to increase the weight capacity, or to distribute the weight of the cargo over more wheels, for example to cross a weight restricted bridge. When not needed, the axle is lifted off the ground to save wear on the tires and axle, and to increase traction i

  6. Jun 16, 2021 · The wheel and axle is a machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other. The wheel and axle can be viewed as a version of the lever, with a drive force applied tangentially to the perimeter of the

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