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| advice please on interfance fit |
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| jim:
i need to shrink fit a boss on to a shaft, i've had conflicting advice as to the amount i need the shaft bigger than the bore. the bore is 18.2mm (.7625") its fairly solid ( up to 2" dia and 1 1/4" long. i'm thinking about .001, is that enough?? thanks jimmyo |
| sbwhart:
Hi Jimmy I did a bit of shrink fitting on my elbow engine I think you'll need a bit more say 0.003". What duty as the bit to do, high strength loctite is very good stuff, with a size on size or slight interfearance and loctite you'll get a good strong joint good enough for most aplications. Have fun Stew |
| jim:
--- Quote from: sbwhart on September 10, 2009, 01:27:29 PM ---Hi Jimmy I did a bit of shrink fitting on my elbow engine I think you'll need a bit more say 0.003". What duty as the bit to do, high strength loctite is very good stuff, with a size on size or slight interfearance and loctite you'll get a good strong joint good enough for most aplications. Have fun Stew --- End quote --- thanks its for a wood cutting saw, i'm just a bit worried about getting it half on and getting stuck! if i can get the boss red, what sort of time frame do you think i'll have and is it worth freezing the shaft (given its dia?) cheers jim |
| NickG:
Stew, I thought you needed a clearance for the loctite to work, a bit like silver solder? Somebody correct me if I'm wrong! Nick |
| sbwhart:
Hi Nick It will work Ok with clearance but its best with an interference. Do you know the loctite rep he was always at RG he's also a bit of a model man, worth having a chat too he'll tell you best way to use the stuff, but not very forthcoming with free samples :lol: Have fun Stew |
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