liam.mccaffrey
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| posted on 20/5/06 at 09:15 AM |
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inteferance fit
i have to fit a bearing onto a shaft but the bearing bore is a full 1mm smaller than the shaft. is that too much for an interferace fit?
seems way too different to me?
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Marcus
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| posted on 20/5/06 at 09:16 AM |
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Unless the shaft is 2 foot in diameter, i think it's too much!
Marcus
Marcus
Because kits are for girls!!
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Marcus
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| posted on 20/5/06 at 09:18 AM |
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Can't be arsed to do maths, but:
Click
Marcus
Marcus
Because kits are for girls!!
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mookaloid
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| posted on 20/5/06 at 09:27 AM |
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quote:
Originally posted by liam.mccaffrey
i have to fit a bearing onto a shaft but the bearing bore is a full 1mm smaller than the shaft. is that too much for an interferace fit?
That's not an interference fit - it's a doesn't fit
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NigeEss
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| posted on 20/5/06 at 09:50 AM |
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quote:
Originally posted by mookaloid
That's not an interference fit - it's a doesn't fit
Quite right, no more than a few of thou for an interference fit.
I doubt you'd get it in with 1 mm unless you've a BIG press.
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liam.mccaffrey
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| posted on 20/5/06 at 10:00 AM |
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i ordered the bearings for my xr4x4 rear end from a bearing company.
i have 2 options now either get the shaft (hub bearing boss) machined to fit-favourite at the moment as it'll be free at work
OR
get new bearings, read expensive
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omega 24 v6
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| posted on 20/5/06 at 10:14 AM |
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No wucking fay it'll go on and if it does the bearing race will be like a virgins fanny.(fcucked)
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Hellfire
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| posted on 20/5/06 at 10:16 AM |
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If you don't plan on replacing the bearings, machine the shaft. It may present more problems later in the day re sourcing new bearings but is
the cheaper short term option.
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liam.mccaffrey
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| posted on 20/5/06 at 10:23 AM |
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i bought 2 sets of the bloody bearings by mistake so i've got one set spare
i knew there was no way that the bearing would go on. 1mm difference is loads, its just that i've never done bearings fits and i wanted to
check.
no prblems with machining the shafts though?
[Edited on 20/5/06 by liam.mccaffrey]
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Nick Skidmore
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| posted on 20/5/06 at 10:31 AM |
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For future reference:-
Sliding fit is about + 0.001" per inch.
Press on to fit is size on size.
Interferance fit (best to heat component and or cool bearing to prevent damage) is - 0.001" per inch.
So 1mm to big would suit a 4 foot bearing!!
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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liam.mccaffrey
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| posted on 20/5/06 at 10:37 AM |
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i have facilities to induction heat the bearing and press it on but the difference between the shaft and bearing is about 20 times too big!!
machining is the answer
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MikeR
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| posted on 20/5/06 at 11:10 AM |
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what about sending the bearing back and getting the correct ones?
Seems to me these are the wrong bearings and you've been miss sold.
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Danozeman
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| posted on 20/5/06 at 11:18 AM |
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AS said. To make it easier to change the bearings later on id get the correct ones. UNless you can guarantee getting the same size bearing at a
later date if u machine it..
BUT for a short term cheap fix machine them.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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nib1980
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| posted on 20/5/06 at 12:37 PM |
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as a young engineer i was given one of these, see link, it's ben the best thing i have ever had, should be able to help all problems in the
future
http://www.tool-up.co.uk/shop/diy/MISZCC.html
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wildchild
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| posted on 22/5/06 at 08:03 AM |
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erm yeah, if you got it on the inner ring would expand so much it took up the clearances and it wouldn't rotate.
If you tell me what the bearing mfr and spec is i'll look up the right fit for you.
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