3/8" shaft extension with arbor?

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Dec 27, 2004
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I just got my first grinder, a Craftsman 2"x42" belt/disk model. I'm liking it so far! :D

However, I'm envious of the Grizzly 2"x72", with that buffer on the left side of the same motor. Especially the way it hangs waaay out to the side so that the motor housing won't get in the way. So I'd really like to do the same thing on my new grinder.

I took apart the disk sanding end, and found a 3/8" shaft underneath. In the Jantz catalog and a couple other places, I've seen shaft extensions in 1/2" and 5/8" sizes, but not 3/8".

Anybody know where I might find a 4"-6" 3/8"-diameter shaft extension with a standard 1/2" arbor on the other end?

Much thanks!!
 
Try calling the folks at Supergrit. Last time I was by their store they had arbor extensions of various sizes. They might have one.

-d
 
Huh... I just bought my belts from them, and sure don't recall seeing those arbors in their catalog. Not that I was looking for 'em, of course...

Thanks, for the tip, I'll send 'em an email.
 
Gryffin said:
Huh... I just bought my belts from them, and sure don't recall seeing those arbors in their catalog. Not that I was looking for 'em, of course...

Thanks, for the tip, I'll send 'em an email.

They have a lot of stuff around the store that isn't in the catalog. :) The catalog is mostly belts and actual abrasives. They also have files, buffs, angle grinders, respirators, drill bits, etc. Heck...I think you can even get ostrich meat in the store :D

-d
 
Before you spend any money on new parts,let's do some engineering.
That 3/8" shaft is designed to take a certain amount of side load.This will be a product of the length and diameter of the shaft. If you make it longer you will greatly lower the force that can be applied. 3/8" is already a very small shaft size,longer and it will fail,most likely taking the main shaft of your grinder along with it.Modifying a heavily built unit can be done within limits. Modifying a light duty unit is not a good idea.Most people who make their own equipment use a 5/8" shaft or larger (preferably larger).1/2" is the minimum for wheels/discs up to 6".Larger wheels and discs require thicker shafts.
Stacy
 
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