The formula to calculate the eccentric turning packing (ETP) is:
\[ ETP = 1.5 \cdot OS \cdot \left(1 - \left(0.125 \cdot \frac{OS}{D}\right)\right) \]
Where:
Let's say the offset (OS) is 2 inches and the bar diameter (D) is 8 inches. Using the formula:
\[ ETP = 1.5 \cdot 2 \cdot \left(1 - \left(0.125 \cdot \frac{2}{8}\right)\right) \]
We get:
\[ ETP = 1.5 \cdot 2 \cdot \left(1 - 0.03125\right) \]
\[ ETP \approx 2.91 \, \text{inches} \]
So, the eccentric turning packing is approximately 2.91 inches.
