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Author Topic: Acme bolt thread??  (Read 1295 times)

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omegod

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Acme bolt thread??
« on: 22 February 2013, 13:30:32 »
I am botching together a device to pull out a wheel bearing using a harmonic balancer remover and washers but need a nut with an acme thread, local engineering shop says never come across one?

Any OOF engineering geniuses come across one or more to the point what are they used on? I may be able to track one down with this info.
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Entwood

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Re: Acme bolt thread??
« Reply #1 on: 22 February 2013, 13:39:27 »
Shame you're not in Wiltshire . ... Mr Sassenach would probably make you one in less than 5 minutes :) .. or let you use his existing home made tools for wheel bearings ....  which are incredibly effective  :)
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Nick W

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Re: Acme bolt thread??
« Reply #2 on: 22 February 2013, 13:40:38 »
Does it have to be Acme? That would suggest you're using an existing threaded part.
If that isn't the case then an ordinary large diameter coarse thread works well in pullers/extractors. Especially if it's for limited use. The one I made to extract my rear hub uses a nut welded to a plate in the end of a piece of tube, and acorresponding bolt for the force. M18 threads effortlessly did the job. A hydraulics or proper fastener supplier will sell you this sort of stuff cheaply if you plan ahead;on a Sunday afternoon Screwfix was my only option.
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omegod

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Re: Acme bolt thread??
« Reply #3 on: 22 February 2013, 13:44:48 »
Indeed the threaded rod with the puller has the ACME thread on it which will pulll the bearing out from behind, but not without a bloody nut it won't  ::) >:(
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Nick W

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Re: Acme bolt thread??
« Reply #4 on: 22 February 2013, 14:01:02 »
Use a smaller diameter length of studding and a couple of appropriate nuts? Tension the assembly with this 'tool' and give the drive part a whack with a hammer to free the bearing. Then wind it out with the thread. A nut gun is very helpful.
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Marks DTM Calib

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Re: Acme bolt thread??
« Reply #5 on: 22 February 2013, 14:06:36 »
Hmm, box threads....not easy to get nuts for!
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omegod

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Re: Acme bolt thread??
« Reply #6 on: 22 February 2013, 15:09:47 »
Cheers guys, got someone hopefully providing some threaded bar and nuts.

Threads will baffle me till the day I die
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Marks DTM Calib

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Re: Acme bolt thread??
« Reply #7 on: 22 February 2013, 15:28:13 »
Quote from: omegod on 22 February 2013, 15:09:47
Cheers guys, got someone hopefully providing some threaded bar and nuts.

Threads will baffle me till the day I die

Acme threads are a square section and can generaly withstand an increased load, trouble is there far from 'standard'
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symes

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Re: Acme bolt thread??
« Reply #8 on: 23 February 2013, 09:51:51 »
how about builders merchants and getting threaded bar? only an idea-will shut up now mate
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