Pinion

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This article is about a type of gear. For other uses, see Pinion (disambiguation).
Pinion and annular gear
Rack and pinion animation

A pinion is a round gear used in several applications:

  • usually the smallest gear in a gear drive train, although in the case of John Blenkinsop's Salamanca, the pinion was rather large.[1] In many cases, such as remote controlled toys, the pinion is also the drive gear.
  • the smaller gear that drives in a 90-degree angle towards a crown gear in a differential drive.
  • the small front sprocket on a chain driven motorcycle.
  • the round gear that engages and drives a rack in a rack and pinion mechanism and against a rack in a rack railway.
  • in the case of radio-controlled cars with an engine (i.e. nitro) this pinion gear can be referred to as a clutch bell when it is paired with a centrifugal clutch.[2]

References

  1. ↑ Gear Nomenclature, Definition of Terms with Symbols. American Gear Manufacturers Association. p. 72. ISBN 1-55589-846-7. OCLC 65562739. ANSI/AGMA 1012-G05. 
  2. ↑ Eric Perez. "Clutch Tuning". NitroRC.com. Retrieved 2010-01-29. 

See also

Look up pinion in Wiktionary, the free dictionary.
Systems
Shapes
Geartooth profiles
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Bicycles
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See also

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