bench grinder wheel replacement?

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Subject Author Date
bench grinder wheel replacement? Grant Erwin 04-23-2006
Posted by xray on April 24, 2006, 3:48 am
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>Nearly every Ace Hardware store has the proper size(s) in their
>Specialty Fasteners bins. The nifty Souix I scrounged a month ago was
>missing the lefthand nut. Cost me $0.85 at Ace Hardware.

Wow. You must live in a time warp. The last decent old-style hardware
store near me vaporized years ago. Killed by home despot, I think. There
is still one pretty decent one not too far away (not Ace), and I go
there a lot, but I'd be really surprised if I could find a left-handed
nut there.

Consider yourself lucky.


Posted by BJ on April 23, 2006, 7:19 pm
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 How about using a strap wrench around the wheel?

Bruce



Posted by Eric R Snow on April 23, 2006, 8:47 pm
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On Sun, 23 Apr 2006 15:10:40 -0700, Grant Erwin

>I have a little Rockwell 3-phase grinder I picked up recently. It had been
wired
>completely wrong and today I rewired it and it runs smooth as glass. I have the
>same problem with it that I have had with every bench grinder, though. The
shaft
>spins one way, so the wheels rotate down towards the tool rest. The nut on one
>end of the shaft is RH and the nut on the other end is LH. If I put a wrench on
>both shaft nuts and crank, one will loosen. The question is, how do I loosen
the
>other one? I can't for the life of me see why grinder manufacturers don't put a
>hole you can put a pin in to lock the shaft for changing wheels. I sure don't
>want to put Vise Grips on the naked threads - what is the trick I'm missing?
>
>GWE
Greetings Grant,
If the threads are clean so that the nut spins easily then you should
be able to get it tight enough just by holding onto the grinding
wheel. This is how I was taught 31 years ago and it has always worked
well.
Cheers,
Eric

Posted by Tom Dacon on April 23, 2006, 11:36 pm
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Get a short piece of copper pipe that fits reasonably well over the threaded
end of the shaft, cut it about an inch long, and then split it lengthwise
(so that it's a nearly-closed C shape). Put it over the threads on one end
and grab it with a pair of water-pump pliers (my preference) or vise-grips,
while you tighten or loosen the other end.

I'm with you, though. Why in the world can't they put some kind of shaft
lock on the damn things?

Tom Dacon

>I have a little Rockwell 3-phase grinder I picked up recently. It had been
>wired completely wrong and today I rewired it and it runs smooth as glass.
>I have the same problem with it that I have had with every bench grinder,
>though. The shaft spins one way, so the wheels rotate down towards the tool
>rest. The nut on one end of the shaft is RH and the nut on the other end is
>LH. If I put a wrench on both shaft nuts and crank, one will loosen. The
>question is, how do I loosen the other one? I can't for the life of me see
>why grinder manufacturers don't put a hole you can put a pin in to lock the
>shaft for changing wheels. I sure don't want to put Vise Grips on the naked
>threads - what is the trick I'm missing?
>
> GWE



Posted by syoung on April 24, 2006, 10:37 am
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Grant Erwin wrote:
> I have a little Rockwell 3-phase grinder I picked up recently. It had
> been wired completely wrong and today I rewired it and it runs smooth as
> glass. I have the same problem with it that I have had with every bench
> grinder, though. The shaft spins one way, so the wheels rotate down
> towards the tool rest. The nut on one end of the shaft is RH and the nut
> on the other end is LH. If I put a wrench on both shaft nuts and crank,
> one will loosen. The question is, how do I loosen the other one? I can't
> for the life of me see why grinder manufacturers don't put a hole you
> can put a pin in to lock the shaft for changing wheels. I sure don't
> want to put Vise Grips on the naked threads - what is the trick I'm
> missing?
>
> GWE

I've always wedged a stick of wood between the guard and the grinding
wheel. Never fails for me.

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