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A common metal short-link chain Roller chains. A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension.
A trivial link with three components has colorings, obtained from its standard diagram by choosing a color independently for each component and discarding the colorings that only use one color. For standard diagram of the Borromean rings, on the other hand, the same pairs of arcs meet at two undercrossings, forcing the arcs that cross over them ...
Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.
Figure 1: A traditional master link, compatible with straight chainlines and widely spaced sprockets. Figure 2: Schematic of a modern master link. Figure 3: A SRAM Powerlink, joining two ends of a chain. Figure 4: A master link with a slightly raised profile. Note that the embossed arrow should point toward the inside of the chain-loop. Note ...
Cufflink designs vary widely, with the most traditional the "double-panel", consisting of a short post or (more often) chain connecting two circular disc-shaped parts, both decorated. Whale-back and toggle-back cufflinks have a flat decorated face for one side, while the other side shows only the swivel-bar and its post.
Common uses of ball chain are for pull cords on light fixtures [1] and ceiling fans, keychains, and as retaining chains for things such as counter pens, and dogtag chains. Typical width is size 3, or 2.4 mm, steel ball chain. In the jewelry industry, pure 925 sterling silver may be in 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, and 2.2 mm ball chain.
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.