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Circular Pitch

gear depth 1Circular pitch, abbreviated as CP, is the measured distance along the circumference of the pitch diameter from the point of one tooth to the corresponding point on an adjacent tooth.   In simpler terms, it is the distance between corresponding points on adjacent teeth, measured along the pitch circle.  The circular pitch is one of the parameters used in gear design and is essential for determining the spacing and dimensions of gears in a system.  It ensuring a smooth and accurate transmission of motion between gears in various mechanical applications.

 

Circular Pitch formula

CP=πPDnt     (Circular Pitch)

PD=CPntπ 

nt=πPDCP 

Symbol English Metric
CP = circular pitch in mm
π = Pi 3.141592653... 3.141592653...
PD = pitch diameter in mm
nt = number of teeth dimensionless dimensionless

  

Circular Pitch formula

CP=πDP     (Circular Pitch)

DP=πCP 

Symbol English Metric
CP = circular pitch in mm
π = Pi 3.141592653... 3.141592653...
DP = dimetrical pitch in mm

 

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