Question

If a driver gear has 10 teeth at 45 RPM compute the number of teeth needed for the driven gear at 90 RPM?

Answer 1

By formula,

Gear speed ratio is given by;

`(T_1)/(T_2)=(N_2)/(N_1)`
`\begin{gathered} (10)/(T_2)=(90)/(45) \\ \text{Cross multiply to get.} \\ 90T_2=10*45 \\ T_2=(450)/(90) \\ T_2=5\text{ t}eeth \end{gathered}`