A ball chain link is often used in jewelry design, such as necklaces or bracelets.
Chain links are devices used in a variety of applications from heavy equipment to jewelry making. A basic definition for a chain coupling is a device used as a means of connecting one or more sections or lengths of chain, or connecting a length of chain to an object. There are several designs of chain couplings in common use today, with the roller chain coupling and the ball chain coupling being two of the most widely used.
Reinforced couplings are often used to connect rail cars to a train locomotive, as well as between cars. The design of these specific couplings actually allows the train to move efficiently, as the chain mechanisms help adjust the speed of each train in the succession of cars so that they essentially function as a single, yet flexible, unit. To speed up the linking process, a rail car coupling chain can be quickly clamped in place and remain secure until the couplings are manually or remotely disengaged. Roller chain couplings are often used in these types of applications.
A ball chain link is a simple design that is often used to connect smaller chains or even in the design of jewelry such as necklaces or bracelets. For example, the coupling can be used to add a length of current to a pull string on a light bulb by simply inserting one end of the new length into one side of the device and the end of the existing pull string into the other. This strategy can be used to lengthen currents used with ceiling fans as well as floor lamps or other types of lamps. Couplings of this type are readily available at various retail establishments, including hardware stores, discount retail stores that sell light bulbs and basic home electrical supplies, and even home decor stores.
With jewelry, a chain link is sometimes used to create a design that allows the wearer to add or subtract length at will. Sometimes this is accomplished by adding or removing small sections of the decorative chain or removing other elements of the design to achieve the desired look and length. With this type of application, the chain attachment makes jewelry truly versatile, since adding or removing elements allows the piece to be adapted to practically any type of occasion.