shrink fit - 303 stainless steel 0.375" square bar
shrink fit - 303 stainless steel 0.375" square bar
(OP)
i have two 0.375" 303 stainless steel square bars - they are overlapping (one bar is on top of the other at the ends). each bar has a 0.500" bored and reamed hole at its end where they are on top of each other - so the holes align. I am trying to shrink fit a 0.502" 303 ss solid shaft through the holes while the square bars are on top of each other and aligned. when i do this the bars move independently creating a shelf.
i heat the bars to 800 degree f. so i get the shaft in the first hole no problem, but because of the shelf created i can not get it into the second one.
does anyone have any suggestions? should i go smaller with my shaft from .502" to .501"? will this be strong enough?
Thank you
i heat the bars to 800 degree f. so i get the shaft in the first hole no problem, but because of the shelf created i can not get it into the second one.
does anyone have any suggestions? should i go smaller with my shaft from .502" to .501"? will this be strong enough?
Thank you





RE: shrink fit - 303 stainless steel 0.375" square bar
RE: shrink fit - 303 stainless steel 0.375" square bar
the bar is .375 deep and .75 wide - they are not square bars.
is there a way to edit my original thread?
RE: shrink fit - 303 stainless steel 0.375" square bar
RE: shrink fit - 303 stainless steel 0.375" square bar
Try inserting the shaft faster so that the bars don't have time to cool down or for the shaft heat up. Maybe try cooling the pin also, to create even more clearance.
RE: shrink fit - 303 stainless steel 0.375" square bar
i red flagged my other thread.
RE: shrink fit - 303 stainless steel 0.375" square bar
Timelord
RE: shrink fit - 303 stainless steel 0.375" square bar
I imagine there will be some deformation at the thinnest (1/8") wall section, which could substantially reduce the 'gripping' force.
Having a decent lead-in chamfer on the shaft should help.
RE: shrink fit - 303 stainless steel 0.375" square bar