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Grinder wheel attachment for old grinder

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Grinder wheel attachment for old grinder Zootal 01-01-2008
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Posted by DanG on January 1, 2008, 1:30 pm
Absolutely. If you are using a double ended motor, both shafts
turn the same direction and so one is going clockwise the other
counter. You will need one of each to play.
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net



> So, now that I know what these things are called, surprise
> surprise they are available in many places, even on eBay.
> Question: Should I use a left hand threaded shaft on one side of
> the motor, and a right hand thread on the other side? Is there a
> danger of a grinding wheel coming loose if I don't?
>
>
>> That is *exactly* it! I didn't even know what they were called.
>> I live in rural Oregon (Lebanon), and all I could get from the
>> local stores here, as well as our few Big Box stores, was dumb
>> looks.
>>
>> Thanks guys - this is why I ask these oddball questions here -
>> if it's anything remotely related to home repair or any type of
>> power tool we might use around the home - someone here always
>> seems to have the answer :-) :D
>>
>>
>>>I assume this is what you are after to convert a motor shaft to
>>>a right hand or left hand threaded shaft:
>>>
>>>
<http://www.grainger.com/Grainger/wwg/productIndex.shtml?L2=Shaft+Arbors&operator=prodIndexRefinementSearch&originalValue=motor+arbor&L1=Motor>
>>>
>>> --
>>> ______________________________
>>> Keep the whole world singing . . . .
>>> DanG (remove the sevens)
>>> dgriff237@7cox.net
>>>
>>>
>>>
>>>>I have an old grinder. It is a Dunlap sold by Sears, I'm
>>>>guessing in the 60s or 70s. It is essentially a 1/3 horse
>>>>electric motor with a 1/2 shaft sticking out each end.
>>>>Attached to each shaft is an attachment that is female 1/2
>>>>inch on one end, such that it slides over the motor shaft and
>>>>is held in place with a set screw. The other end is a threaded
>>>>1/2 stud with nut that you slide a grinding wheel (or
>>>>whatever) on it and secure with nut. Any wheel or brush or
>>>>whatever with a 1/2 hole will fit on this.
>>>>
>>>> I need one of these attachments. I've been to hardware and
>>>> auto part stores, and no one that I've found so far has any
>>>> clue where I can find one of these. Does anyone have any idea
>>>> where I can find such an attachment?
>>>>
>>>
>>>
>>
>>
>
>



Posted by Nate Nagel on January 1, 2008, 1:48 pm
yes and yes. assuming that when you're facing the grinder, both wheels
are rotating so that the face of the wheel is moving down (or in other
words, if you look at the RH wheel face on it is rotating CCW) you
should use RH thread on the RH wheel and LH thread on the LH wheel.
that way the wheels will tend to tighten themselves in use, not loosen.

nate

(I hope I got that right)


Zootal wrote:
> So, now that I know what these things are called, surprise surprise they are
> available in many places, even on eBay. Question: Should I use a left hand
> threaded shaft on one side of the motor, and a right hand thread on the
> other side? Is there a danger of a grinding wheel coming loose if I don't?
>
>
>
>>That is *exactly* it! I didn't even know what they were called. I live in
>>rural Oregon (Lebanon), and all I could get from the local stores here, as
>>well as our few Big Box stores, was dumb looks.
>>
>>Thanks guys - this is why I ask these oddball questions here - if it's
>>anything remotely related to home repair or any type of power tool we
>>might use around the home - someone here always seems to have the answer
>>:-) :D
>>
>>
>>
>>>I assume this is what you are after to convert a motor shaft to a right
>>>hand or left hand threaded shaft:
>>>
>>><http://www.grainger.com/Grainger/wwg/productIndex.shtml?L2=Shaft+Arbors&operator=prodIndexRefinementSearch&originalValue=motor+arbor&L1=Motor>
>>>
>>>--
>>>______________________________
>>>Keep the whole world singing . . . .
>>>DanG (remove the sevens)
>>>dgriff237@7cox.net
>>>
>>>
>>>
>>>
>>>>I have an old grinder. It is a Dunlap sold by Sears, I'm guessing in the
>>>>60s or 70s. It is essentially a 1/3 horse electric motor with a 1/2 shaft
>>>>sticking out each end. Attached to each shaft is an attachment that is
>>>>female 1/2 inch on one end, such that it slides over the motor shaft and
>>>>is held in place with a set screw. The other end is a threaded 1/2 stud
>>>>with nut that you slide a grinding wheel (or whatever) on it and secure
>>>>with nut. Any wheel or brush or whatever with a 1/2 hole will fit on
>>>>this.
>>>>
>>>>I need one of these attachments. I've been to hardware and auto part
>>>>stores, and no one that I've found so far has any clue where I can find
>>>>one of these. Does anyone have any idea where I can find such an
>>>>attachment?
>>>>
>>>
>>>
>>
>
>


--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

Posted by NickySantoro on January 6, 2008, 11:15 am
On Mon, 31 Dec 2007 21:44:40 -0800, "Zootal"

>I have an old grinder. It is a Dunlap sold by Sears, I'm guessing in the 60s
>or 70s. It is essentially a 1/3 horse electric motor with a 1/2 shaft
>sticking out each end. Attached to each shaft is an attachment that is
>female 1/2 inch on one end, such that it slides over the motor shaft and is
>held in place with a set screw. The other end is a threaded 1/2 stud with
>nut that you slide a grinding wheel (or whatever) on it and secure with nut.
>Any wheel or brush or whatever with a 1/2 hole will fit on this.
>
>I need one of these attachments. I've been to hardware and auto part stores,
>and no one that I've found so far has any clue where I can find one of
>these. Does anyone have any idea where I can find such an attachment?
>
Bought both grinding wheel and wire wheel at Home Depot a few years
back.

Posted by Zootal on January 6, 2008, 3:54 pm

> On Mon, 31 Dec 2007 21:44:40 -0800, "Zootal"
>
>>I have an old grinder. It is a Dunlap sold by Sears, I'm guessing in the
>>60s
>>or 70s. It is essentially a 1/3 horse electric motor with a 1/2 shaft
>>sticking out each end. Attached to each shaft is an attachment that is
>>female 1/2 inch on one end, such that it slides over the motor shaft and
>>is
>>held in place with a set screw. The other end is a threaded 1/2 stud with
>>nut that you slide a grinding wheel (or whatever) on it and secure with
>>nut.
>>Any wheel or brush or whatever with a 1/2 hole will fit on this.
>>
>>I need one of these attachments. I've been to hardware and auto part
>>stores,
>>and no one that I've found so far has any clue where I can find one of
>>these. Does anyone have any idea where I can find such an attachment?
>>
> Bought both grinding wheel and wire wheel at Home Depot a few years
> back.

They do have wheels, but they don't carry arbors that big. All they have
today is arbors for small hand tools.

What is amazing is how many hardware stores I walk into, show them the arbor
I have, and have them stare at it like it came from another planet.



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