I am designing a simple sheet of aluminum that has multiple holes 0.5 deep in CATIA. After it is machined, the goal is to insert steel pegs of diameter 1/8 in these holes, and I dont want it to wiggle around very much.
According to the ANSI standard for sliding fits, my desired tolerance of RC2 (just picked the one I thought would be best) says that my max tolerance can be 0.0003. That renders 0.125 + 0.0003.
The peg I would like to use is 0.125 +/- 0.0005.
Now, the maximum diameter of the peg can be 0.1255 which is greater than the max the hole can be ie. 0.1253 So clearly I cannot go that route. Can I have some advice as to how to approach this issue? I just want to know how much clearance I should have between the hole and the peg to have a good fit but not also be too small so that I cant insert it myself.
As you can probably tell, I am new to tolerances. Any help is appreciated. Thank you!
Let's backup a little... You want a fit that "I don’t want it to wiggle around very much.".
What is the function of this installation ? Convince yourself and me that you actually need a RC2..
Tell me and I forget. Teach me and I remember. Involve me and I learn.