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2. Bicycle chain - Wikipedia

   en.wikipedia.org/wiki/Bicycle_chain

   The chain in use on modern bicycles has a 1 ⁄ 2 inch (12.7 mm) pitch, which is the distance from one pin center to another, ANSI standard #40, where the 4 in "#40" indicates the pitch of the chain in eighths of an inch; and ISO standard 606 (metric) #8, where the 8 indicates the pitch in sixteenths of an inch. Its roller diameter is 5 ⁄ 16 ...

3. List of bicycle parts - Wikipedia

   en.wikipedia.org/wiki/List_of_bicycle_parts

   Cartridge bearing: a type of bearing that is not user-serviceable, but must be replaced as a unit; Cassette: a group of stacked sprockets on the rear wheel of a bicycle with a rear derailleur; Coaster brake or backpedal brake; Chain: a system of interlinking pins, plates and rollers that transmits power from the front sprocket(s) to the rear ...

4. Roller chain - Wikipedia

   en.wikipedia.org/wiki/Roller_chain

   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.

5. Thrust bearing - Wikipedia

   en.wikipedia.org/wiki/Thrust_bearing

   Spherical roller thrust bearings offer the highest load rating density of all thrust bearings. [2] Fluid bearings, where the axial thrust is supported on a thin layer of pressurized liquid—these give low drag. Miba fluid film thrust bearing. Magnetic bearings, where the axial thrust is supported on a magnetic field. This is used where very ...

6. Rolling-element bearing - Wikipedia

   en.wikipedia.org/wiki/Rolling-element_bearing

   A cylindrical roller bearing. Roller bearings are the earliest known type of rolling-element-bearing, dating back to at least 40 BC. Common roller bearings use cylinders of slightly greater length than diameter. Roller bearings typically have a higher radial load capacity than ball bearings, but a lower capacity and higher friction under axial ...

7. Bearing (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Bearing_(mechanical)

   A ball bearing. 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.

8. Headset (bicycle part) - Wikipedia

   en.wikipedia.org/wiki/Headset_(bicycle_part)

   38.1 mm (1 + 1 ⁄ 2 in), as used in the OnePointFive International Standard. Cannondale Headshok. Although a Headshok steerer is close to 38.1 mm (1 + 1 ⁄ 2 in) it is actually 39.7 mm (1 + 9 ⁄ 16 in). The headtube dimensions for 38.1 mm (1 + 1 ⁄ 2 in) and Headshok are very similar, differing only in the minimum press depth.

9. Tapered roller bearing - Wikipedia

   en.wikipedia.org/wiki/Tapered_roller_bearing

   The bearing was composed of two sets of cylindrical rollers, one set larger in diameter than the other, that fit on flats machined on the tapered axle-skein. In 1898, Henry Timken was awarded a patent [2] for the tapered roller bearing which used conical rollers. At the time, Timken was a carriage-maker in St. Louis and held three patents for ...