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The English word wheel comes from the Old English word hwēol, from Proto-Germanic *hwehwlaz, from Proto-Indo-European *k w ék w los, [1] an extended form of the root *k w el-' to revolve, move around '. Cognates within Indo-European include Icelandic hjól ' wheel, tyre ', Greek κύκλος kúklos, and Sanskrit chakra, the last two both ...
On a bicycle wheel, the rim is clearly just one component of the assembly, and it can be purchased separately and replaced if damaged or if the sidewalls have been eroded by rim brakes. [17] In discussions of automobiles, however, the terms wheel and rim are often incorrectly used synonymously, as in decorative wheels being called rims. One ...
By varying the radii of the axle and/or wheel, any amount of mechanical advantage may be gained. [18] In this manner, the size of the wheel may be increased to an inconvenient extent. In this case a system or combination of wheels (often toothed, that is, gears) are used. As a wheel and axle is a type of lever, a system of wheels and axles is ...
An English wheel showing four interchangeable lower wheels (anvils), the larger fixed upper wheel, the pressure adjustment screw and a quick release mechanism The English wheel , in Britain also known as a wheeling machine , is a metalworking tool that enables a craftsperson to form compound (double curvature) curves from flat sheets of metal ...
For an asymmetric wheel such as a front wheel with disc brake or a rear wheel with chain derailleur, the value of d is different for the left and right sides. a is the angle between (1) the radius to a nipple hole in the rim to which a spoke is attached, and, (2) the radius to the flange hole holding the spoke.
Ferris wheel; Breaking wheel, a medieval execution device; English wheel, a metalworking tool used to curve sheet metal; Hamster wheel, an exercise toy used by pet rodents; Water wheel, a wheel for converting the energy of flowing or falling water
Forged wheels are usually lighter, stronger, but much more expensive than cast wheels. There are two types of forged wheels: one piece and modular. Modular forged wheels may feature two- or three-piece design. Typical multi-piece wheels consist of the inner rim base, outer rim lip and wheel center piece with openings for lug nuts.
the great wheel also known as walking wheel or wool wheel for rapid long draw spinning of woolen-spun yarns; the flax wheel, which is a double-drive wheel used with a distaff for spinning flax fibres for making linen; saxony and upright wheels, all-purpose treadle driven wheels used to spin both woolen and worsted-spun yarns; and; the charkha ...