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Axle
An AXLE 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 type axle is referred to as a spindle . CONTENTS * 1 Terminology * 2 Vehicle
Vehicle
axles * 3 Structural features And Design * 4 Drive axle * 5 Dead axle (lazy axle) * 6 Lift axle * 7 Full-floating vs semi-floating * 8 See also * 9 Notes * 10 External links TERMINOLOGYOn 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
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Axl (other)
AXL may refer to: * Axl Rose , lead singer of Guns N\' Roses * Axl Low , a character in the Guilty Gear video game series * AXL receptor tyrosine kinase in biochemistry, a member of the receptor tyrosine kinase family of cell surface receptors * Axl Heck, a fictional character from the television sitcom, "The Middle " * Axl, a fictional character in the game series "Mega Man X " made by Capcom * Axl, a fictional character from the animated television series Nexo Knights SEE ALSO * Axel (other) * Axle This disambiguation page lists articles associated with the title AXL. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from "https://en.wikipedia.org/w/index.php?title=Axl additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy .® is a registered trademark of the Wikimedia Foundation, Inc
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Axel (other)
AXEL may refer to: * Axel (name) * Axël , a 1890 drama play by Auguste Villiers de l'Isle-Adam * Axel (singer) , Argentine singer-songwriter * Axel, Netherlands , a town in the province of Zeeland, the Netherlands * Axel (dance turn) , a type of turn performed in dance * Axel jump , a type of jump in figure skating * Axel, a 1988 short film by Nigel Wingrove SEE ALSO * "Axel F ", the 1985 instrumental theme song of Beverly Hills Cop by Harold Faltermeyer * Typhoon Axel (other) * Aksel * Axle * Axl (other) * All pages beginning with "Axel" * All pages with a title containing Axel This disambiguation page lists articles associated with the title AXEL. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from "https://en.wikipedia.org/w/index.php?title=Axel additional terms may apply
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Train Wheel
A TRAIN WHEEL or RAIL WHEEL is a type of wheel specially designed for use on rail tracks . A rolling component is typically pressed onto an axle and mounted directly on a rail car or locomotive or indirectly on a bogie (UK), also called a truck (North America). Wheels are cast or forged (wrought) and are heat-treated to have a specific hardness. New wheels are trued, using a lathe , to a specific profile before being pressed onto an axle. All wheel profiles need to be periodically monitored to ensure proper wheel-rail interface . Improperly trued wheels increase rolling resistance , reduce energy efficiency and may create unsafe operation. A railroad wheel typically consists of two main parts: the wheel itself, and the tire (or tyre) around the outside. A rail tire is usually made from steel , and is typically heated and pressed onto the wheel, where it remains firmly as it shrinks and cools
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Wheelset (railroad)
A WHEELSET is the wheel - axle assembly of a railroad car . The frame assembly beneath each end of a car, railcar or locomotive that holds the wheelsets is called the bogie (or truck in North America ). Most North American freight cars have two bogies with two or three wheelsets, depending on the type of car; short freight cars generally have no bogies but instead have two wheelsets. CONTENTS * 1 Grovers bogie * 2 Special wheelsets * 3 Semi-conical shape * 4 Gallery * 5 See also * 6 References * 7 Sources * 8 External links GROVERS BOGIETwo-axle cars operating on lines with sharp curves, such as Queensland Railways , used Grovers bogies. SPECIAL WHEELSETS Bogie from an MP 89 Paris Métro rolling stock showing the two special wheelsets Rubber-tyred metros feature special wheelsets with rubber tyres outside of the special flanged steel wheels
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Rotation
A ROTATION is a circular movement of an object around a center (or point) of rotation. A three-dimensional object always rotates around an imaginary line called a rotation axis. If the axis passes through the body's center of mass, the body is said to rotate upon itself, or spin. A rotation about an external point, e.g. the Earth about the Sun , is called a revolution or orbital revolution, typically when it is produced by gravity . The axis is called a POLE. CONTENTS * 1 Mathematics * 2 Astronomy * 2.1 Rotation and revolution * 2.2 Retrograde rotation * 3 Physics * 3.1 Cosmological principle * 3.2 Euler rotations * 4 Flight dynamics * 5 Amusement rides * 6 Sports * 7 Fixed axis vs
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Wheel
A WHEEL is a circular component that is intended to rotate on an axle bearing . The wheel is one of the main 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 machines. Wheels are also used for other purposes, such as a ship\'s wheel , steering wheel , potter\'s wheel and flywheel . Common examples are found in transport applications. A wheel greatly reduces friction by facilitating motion by rolling together with the use of axles . In order for wheels to rotate, a moment needs to be applied to the wheel about its axis, either by way of gravity or by the application of another external force or torque
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Gear
A GEAR or COGWHEEL is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part to transmit torque . Geared devices can change the speed, torque, and direction of a power source . Gears almost always produce a change in torque, creating a mechanical advantage , through their gear ratio , and thus may be considered a simple machine . The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a transmission . A gear can mesh with a linear toothed part, called a rack, thereby producing translation instead of rotation. The gears in a transmission are analogous to the wheels in a crossed, belt pulley system. An advantage of gears is that the teeth of a gear prevent slippage. When two gears mesh, if one gear is bigger than the other, a mechanical advantage is produced, with the rotational speeds , and the torques, of the two gears differing in proportion to their diameters
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Bearing (mechanical)
A BEARING is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts . The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis ; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts. Rotary bearings hold rotating components such as shafts or axles within mechanical systems, and transfer axial and radial loads from the source of the load to the structure supporting it. The simplest form of bearing, the plain bearing , consists of a shaft rotating in a hole. Lubrication is often used to reduce friction
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Bushing (bearing)
A PLAIN BEARING (in railroading sometimes called a SOLID BEARING) is the simplest type of bearing , comprising just a bearing surface and no rolling elements. Therefore, the journal (i.e., the part of the shaft in contact with the bearing) slides over the bearing surface. The simplest example of a plain bearing is a shaft rotating in a hole. A simple linear bearing can be a pair of flat surfaces designed to allow motion; e.g., a drawer and the slides it rests on or the ways on the bed of a lathe . Plain bearings, in general, are the least expensive type of bearing. They are also compact and lightweight, and they have a high load-carrying capacity
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Bicycle
A BICYCLE, also called a CYCLE or BIKE, is a human-powered , pedal-driven , single-track vehicle , having two wheels attached to a frame , one behind the other. A bicycle rider is called a cyclist , or bicyclist. Bicycles were introduced in the late 19th century in Europe, and by the early 21st century, more than 1 billion have been produced worldwide. These numbers far exceed the number of cars, both in total and ranked by the number of individual models produced. They are the principal means of transportation in many regions. They also provide a popular form of recreation, and have been adapted for use as children's toys, general fitness , military and police applications, courier services , bicycle racing and bicycle stunts. The basic shape and configuration of a typical upright or "safety bicycle" , has changed little since the first chain-driven model was developed around 1885
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Spindle (tool)
In machine tools , a SPINDLE is a rotating axis of the machine, which often has a shaft at its heart. The shaft itself is called a spindle, but also, in shop-floor practice, the word often is used metonymically to refer to the entire rotary unit, including not only the shaft itself, but its bearings and anything attached to it (chuck , etc.). A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe . The main spindle is usually the biggest one. References to "the spindle" without further qualification imply the main spindle. Some machine tools that specialize in high-volume mass production have a group of 4, 6, or even more main spindles. These are called MULTISPINDLE machines. For example, gang drills and many screw machines are multispindle machines. Although a bench lathe has more than one spindle (counting the tailstock), it is not called a multispindle machine; it has one main spindle
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Bolted
In rock climbing , a BOLT is a permanent anchor fixed into a hole drilled in the rock as a form of protection . Most bolts are either self-anchoring expansion bolts or fixed in place with liquid resin. While bolts are commonplace in rock and gym climbing there is no universal vocabulary to describe them. Generally, a bolt hanger or a fixed hanger is a combination of a fixed bolt and a specialized stainless steel hanger designed to accept a carabiner , whereas in certain regions a bolt runner or a carrot describes a hangerless bolt (where the climber must provide their own hanger bracket and sometimes lock nut). A ring bolt has a loop on one end so it presents as a U-shape embedded in the wall. A climbing rope is then clipped into the carabiner. Generally quickdraws or slings are employed between bolt hangers and the rope to reduce drag when ascending, belaying and rappelling
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Rotating Spline
SPLINES are ridges or teeth on a drive shaft that mesh with grooves in a mating piece and transfer torque to it, maintaining the angular correspondence between them. For instance, a gear mounted on a shaft might use a male spline on the shaft that matches the female spline on the gear. The splines on the pictured drive shaft match with the female splines in the center of the clutch plate, while the smooth tip of the axle is supported in the pilot bearing in the flywheel . An alternative to splines is a keyway and key , though splines provide a longer fatigue life . CONTENTS * 1 Types * 2 Uses * 3 Manufacturing * 4 See also * 5 References * 6 Further reading TYPESThere are several types of splines: Parallel key spline where the sides of the equally spaced grooves are parallel in both directions, radial and axial
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Sand Casting
SAND CASTING, also known as SAND MOLDED CASTING, is a metal casting process characterized by using sand as the mold material. The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries . Over 70% of all metal castings are produced via sand casting process. Molds made of sand are relatively cheap, and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop the strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask . The mold cavities and gate system are created by compacting the sand around models, or patterns , or carved directly into the sand
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Independent Suspension
INDEPENDENT SUSPENSION is a broad term for any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump in the road) independently of the others. This is contrasted with a beam axle or deDion axle system in which the wheels are linked – movement on one side affects the wheel on the other side. "Independent" refers to the motion or path of movement of the wheels or suspension. It is common for the left and right sides of the suspension to be connected with anti-roll bars or other such mechanisms. The anti-roll bar ties the left and right suspension spring rates together but does not tie their motion together. Most modern vehicles have INDEPENDENT FRONT SUSPENSION (IFS). Many vehicles also have an INDEPENDENT REAR SUSPENSION (IRS). IRS, as the name implies, has the rear wheels independently sprung
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