ISO Slip Fits
ISO Slip Fits
(OP)
thread404-408838: Press fit hole for ISO m6 dowel discussed "standard" recommended press fits with ISO class m6 dowel pins which seem to be by far the most common ISO dowel pins.
Is there a standard recommended slip fit with ISO class m6 dowel pins?
I'm aware that the H7 reamer is the most common, but a m6/H7 fit is a transition fit (at least one sources describes m6/H7 as a "driving fit").
There are obviously a myriad of other ISO hole classes, but not all of these are common and not all have reamers associated with that hole class. Is there a standard / recommended / common fit with a class m6 dowel pin that results in a slip fit? Application is in fixturing with frequent workpiece engagement/disengagement.
Is there a standard recommended slip fit with ISO class m6 dowel pins?
I'm aware that the H7 reamer is the most common, but a m6/H7 fit is a transition fit (at least one sources describes m6/H7 as a "driving fit").
There are obviously a myriad of other ISO hole classes, but not all of these are common and not all have reamers associated with that hole class. Is there a standard / recommended / common fit with a class m6 dowel pin that results in a slip fit? Application is in fixturing with frequent workpiece engagement/disengagement.





RE: ISO Slip Fits
If you are designing jigs with frequent engagement/disengagement, you probably shouldn't be using dowel pins. There are lots of components commercially available (Misumi for metric, Carr-Lane for inch are just a couple) that are designed to be incorporated in engage/disengage jig operations.
RE: ISO Slip Fits
RE: ISO Slip Fits
m6 pins are certainly the most commonly available type- with that in hand, you need to pick a fit from the chart and buy the right reamer. Simple.
RE: ISO Slip Fits
RE: ISO Slip Fits
I presume you are designing/deciding on the location and fit of the (holes in the removable workpiece, not the holes capturing the dowels in the fixture.