Definition of pitch circle in English:

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pitch circle


An imaginary circle concentric to a toothed wheel, along which the pitch of the teeth is measured.
Example sentences
  • The velocity ratio is equal to the inverse ratio of the diameters of pitch circles.
  • The hypoid gears used in conventional axles do not have a true pitch circle since both sliding and rolling occurs at the teeth and the gears could not be replaced with frictional disks.

For editors and proofreaders

Line breaks: pitch cir¦cle

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