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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. [1] In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a ...
The word is first attested in the late fourteenth century and derives from Middle English elements meaning "axletree pin". [1] [2] Securing implements onto the three-point hitch of a tractor is an example of application. Linchpins may also be used in place of an R-clip for securing hitch pins. [3]
A live axle is a type of beam axle in which the shaft (or, commonly, shafts connected to move as a single unit) also transmits power to the wheels; a beam axle that does not also transmit power is sometimes called a dead axle.
The windlass is a well-known application of the wheel and axle.. 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.
A triangle in a real tree. A metric space is a real tree if it is a geodesic space where every triangle is a tripod. That is, for every three points ,, there exists a point = such that the geodesic segments [,], [,] intersect in the segment [,] and also [,].
A stub axle or stud axle is either one of two front axles in a rear-wheel drive vehicle, or one of the two rear axles in a front-wheel drive vehicle. In a rear-wheel drive vehicle this axle is capable of angular movement about the kingpin for steering the vehicle.
Although "tree" is a common word, there is no universally recognised precise definition of what a tree is, either botanically or in common language. [ 1 ] [ 2 ] In its broadest sense, a tree is any plant with the general form of an elongated stem, or trunk, which supports the photosynthetic leaves or branches at some distance above the ground ...
A swivel caster. A caster (or castor) is an undriven wheel that is designed to be attached to the bottom of a larger object (the "vehicle") to enable that object to be moved.