pitch cone

noun Machinery.

See under pitch surface.

Nearby words

  1. pitch accent,
  2. pitch and putt,
  3. pitch chain,
  4. pitch chisel,
  5. pitch circle,
  6. pitch cylinder,
  7. pitch in,
  8. pitch into,
  9. pitch lake,
  10. pitch line

pitch surface


(in a gear or rack) an imaginary surface forming a plane (pitch plane), a cylinder (pitch cylinder), or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.

Origin of pitch surface

First recorded in 1885–90

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019