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Lewis form factor for $$14{\frac{1}{2}^ \circ }$$ composite and full depth involute system is (where T = Number of teeth)

A. $$0.124 - \frac{{0.684}}{{\text{T}}}$$

B. $$0.154 - \frac{{0.912}}{{\text{T}}}$$

C. $$0.175 - \frac{{0.841}}{{\text{T}}}$$

D. None of these

Answer: Option A


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