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A Schmidts Original Nabendynamo (SON) brand hub dynamo Another SON dynamo A Shimano dynamo hub. A hub dynamo is a small electrical generator built into the front hub of a bicycle wheel that is usually used to power lights. Often the hub "dynamo" is not actually a dynamo, which creates DC, but a low-power magneto that creates AC. Most modern hub ...
Hub dynamo: a generator inside one of the hubs for powering lights or other accessories; Hub gear: a gearbox mounted inside the hub, 3-speed is common, 5, 7 are available ("Sturmey-Archer"), Enviolo makes a CVT, and Rohloff makes a 14-speed hub. Cable operated by one or two cables; Indicator: a turn signal
A bottle dynamo or sidewall dynamo is a small electrical generator for bicycles employed to power a bicycle's lights. The traditional bottle dynamo (pictured) is not actually a dynamo at all (which creates DC power), but a low-power magneto that generates AC .
Red light on the back of a bicycle Early bicycle lighting: candle lamps, oil lamps and carbide lamps Early bicycle lamps and two early bottle dynamos (1935). Bicycle lighting is illumination attached to bicycles whose purpose above all is, along with reflectors, to improve the visibility of the bicycle and its rider to other road users under circumstances of poor ambient illumination.
Schmidt hub dynamo disk brake. ... (SON) is a manufacturer of high-efficiency and low-drag bicycle hub power generators and other electric bicycle gear. [1] [2] [3 ...
"Dynamo Electric Machine" (end view, partly section, U.S. patent 284,110) A dynamo is an electrical generator that creates direct current using a commutator.Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current ...
The name dynamo implies DC output, but as usual with bicycle dynamos (known as generators in North America), output was in fact alternating current. Dynohubs were offered as front hubs and as rear geared hubs. The AG was an AW three-speed rear hub with inbuilt dynamo, while the FG was a dynamo similarly combined with an FW four-speed. An SG ...
Most commonly, a small magneto, termed a bottle dynamo, rubs against the tire of the bicycle and generates power as the wheel turns. More expensive and less common but more efficient is the hub dynamo that rotates neodymium magnets around a copper coil in a claw pole cage inside the hub of a wheel.