Number of Teeth
Number of teeth, abbreviated as \(n_t\), is the number of teeth contained in a gear.
Number of Teeth formula |
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\(\large{ n_t = DP \; PD }\) | ||
Symbol | English | Metric |
\(\large{ n_t }\) = number of teeth | \(\large{dimensionless}\) | |
\(\large{ DP }\) = dimetrical pitch | \(\large{in}\) | \(\large{mm}\) |
\(\large{ PD }\) = pitch diameter | \(\large{in}\) | \(\large{mm}\) |
Number of Teeth formula |
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\(\large{ n_t = \frac{ \pi \; PD }{ CP } }\) | ||
Symbol | English | Metric |
\(\large{ n_t }\) = number of teeth | \(\large{dimensionless}\) | |
\(\large{ CP }\) = circular pitch | \(\large{in}\) | \(\large{mm}\) |
\(\large{ PD }\) = pitch diameter | \(\large{in}\) | \(\large{mm}\) |
\(\large{ \pi }\) = Pi | \(\large{3.141 592 653 ...}\) |
Tags: Gear Equations