Answer / swapnil patil

Circle dia on which spacing or tooth profile is established
is called as Pitch circle dia or PCD.
PCD= CP*No. of tooth.
cp= circular pitch

Answer / sankararaman.kr.

Pitch dia is nothing but imaginary cicle of group of
circles in a equally spaced angle or coordinate
representation for specified values.

EXAMPLE: form six circles of dia 12mm with radius of 120mm
& at an angle of 60 ° degree of each.

The centers of six circles will give the pitch circle
diameter.

Answer / pankaj singh

it's the daimeter of the pitch circle. the size if the gear
is usully specified by the circle diameter that's known as
pitch diameter

Answer / guest

inbetween circle of addendum& dedantum

Answer / vennela

The diameter of the disc , without the teeth, which would
trasmit the same velocities by friction as the gear wheels.

Answer / guest

inbetween circle of addendum& dedantum

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