Mean radius of friction surfaces in Uniform Wear
Equation and meaning
\[R = \frac{r_{1} + r_{2}}{2}\]
Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.
Variables in this formula
R — ResistanceElectrical resistance SI unit: Ω
r_1 — R 1Enter this value unless it is the selected unknown.
r_2 — R 2Enter this value unless it is the selected unknown.