Recently I have seen a question as follows:

Dimension of the hole is $50 +.02/-.00$ mm and shaft is $50 +.02/-.00$ mm.The minimum clearance is?

My answer is .00 but the correct answer as per the website is -.02

Where am I going wrong?

Please help me.


1 Answer 1


The minimum clearance occurs when the largest possible shaft meets the smallest possible hole. That would be in this case a shaft of $50.02 mm$ in a hole of $50.00 mm$. The difference between the two is the $-0.02 mm$ from the solution you found.

  • 1
    $\begingroup$ That would be an interference fit... $\endgroup$
    – Solar Mike
    Jan 6, 2020 at 18:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.