I guess to be clear, this is not an interference fit, we just wanted to heat it to be sure there was ample room for the insertion. But alas, this is a moot point anyway because the contractor failed to heat it and it fit like a glove anyway. Thanks for the responses though
I am working on site installing a ball mill (28 foot diameter, 44 feet long). We are trying to heat the end of it to insert the trunnion and I am trying to figure out how the thermal expansion of the head works.
The head of this mill is basically a washer shape, 28' on the outside with a 15'...