Grizzly bargain: 9" 6LB cast iron disk (disk sander/grinder) for $16

R

rashid11

Joined
Dec 8, 2005
Messages
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If you're building a disk sander, you might be interested in
this disk from Grizzly.

http://www.grizzly.com/products/g1014z/parts (line # 21)

I bought it as 2nd disk to add to my clamp-on-disk-sander,
which is already outfitted with 12" disk (also a stock replacement
part from Grizz).

The disk is 9", ~3/8" thick, nice and heavy. Looks like
they balanced it too. It has a keyway and 2 set screws.

The face is beveled - the center is ~1/16" lower than
the outer edges.
 
Hello Rashid

What size shaft does that disk take? The people at Grizzly did not know. thanks.

Phil
 
I dunno, will measure tonite and post here. To me it doesn't matter,
due to construction of my sander and me having a lathe :) - so I can
turn my own shaft to match whatever size they have.
 
I'm liking this as a low-cost alternative to an expensive disk sander, but I've got one question. My interest in a disk sander would be for making things flat. How does a crowned disk affect this? I suppose I could get one and spin it flat on the lathe, but I was wondering how well it would work "stock" to make stuff flat.

-d
 
I don't quite understand why they bevel them. I know there's some kind of reason for it.
If you have a lathe that can turn 9" disk, then you can always turn it to true flat if bevel
doesn't work for you.
 
A 9" disc has a working area of 4.5". If you are flattening a larger pc than 4.5" then the far end of your stock won't be in cointact with the disc to screw things up.
 
The reason they are beveled is because you can't use the whole face, only half of it. One side is going down and the other is going up, would mess up your grind. Actually they are usually bevelled away from the center to avoid this. Not bevelled in.

nthe10ring
 
That explains it :)

Me likes bevels not - the grinding surface is effectively shaped like a funnel and thus will always have some curvature to it. You can prolly flatten out smaller pieces, but can you obtain a perfect flat on a larger surface ?

The 12" disk - also replacement part from Grizz, _is_ perfectly flat. It is Al, no CI, but
perfect otherwise. Uses same 15mm shaft.
 
rashid11 said:
That explains it :)

Me likes bevels not - the grinding surface is effectively shaped like a funnel and thus will always have some curvature to it. You can prolly flatten out smaller pieces, but can you obtain a perfect flat on a larger surface ?

The 12" disk - also replacement part from Grizz, _is_ perfectly flat. It is Al, no CI, but
perfect otherwise. Uses same 15mm shaft.
Click to expand...

If you are talking about Rob Frinks beveled disc's, these have a 1degree bevel and the 'curve' calculates out to something like .001" or less on a typical width knife blade. It isn't a factor for us mere humans.
 
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