What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
(OP)
Hi,
I have an alloy steel dowel pin of .375 DIA. that I am inserting into an aluminum housing. Can someone help me with the hole tolerance that is needed in order for it to be a slip-fit? Any reference (URL, book, etc.) of where you found your answer is always welcome. Thank you very much!
I have an alloy steel dowel pin of .375 DIA. that I am inserting into an aluminum housing. Can someone help me with the hole tolerance that is needed in order for it to be a slip-fit? Any reference (URL, book, etc.) of where you found your answer is always welcome. Thank you very much!





RE: What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
Try this link
http://www.cobanengineering.com/Tolerances/ISOHole...
RE: What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
A slip fit under what conditions? Obviously, due to the CTE mismatch existing between your steel pin and aluminum bore, the fit condition will change with temperature.
As a general rule, it is usually easier to control the tolerance of a ground steel pin than a drilled/reamed aluminum hole. So bias your tolerance allowances accordingly.
RE: What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
Your post helped a lot! Thanks!
tbuelna,
It is under normal room temperature conditions, ~70 Fahrenheit. Yes I understand that it is easier to control the tolerance of the ground steel pin, thank you!
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RE: What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
Your welcome.
Desertfox
RE: What should the hole tolerance for a .375 DIA. dowel pin be in order to be a slip-fit?
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.