Enter the offset (in) and the bar diameter (in) into the Eccentric Turning Packing Calculator. The calculator will evaluate the Eccentric Turning Packing. 

Eccentric Turning Packing Formula

The following two example problems outline the steps and information needed to calculate the Eccentric Turning Packing.

ETP = 1.5 * OS * (1 - (.125*(OS/D)))


  • ETP is the Eccentric Turning Packing (in)
  • OS is the offset (in) 
  • D is the bar diameter (in) 

How to Calculate Eccentric Turning Packing?

The following steps outline how to calculate the Eccentric Turning Packing.

  1. First, determine the offset (in). 
  2. Next, determine the bar diameter (in). 
  3. Next, gather the formula from above = ETP = 1.5 * OS * (1 – (.125*(OS/D))).
  4. Finally, calculate the Eccentric Turning Packing.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

offset (in) = 1.25

bar diameter (in) = 3

ETP = 1.5 * OS * (1 – (.125*(OS/D))) = ?