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Ed Caffrey's Workshop Talk to Ed Caffrey ... The Montana Bladesmith! Tips, tricks and more from an ABS Mastersmith.

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Old 02-19-2003, 06:42 AM
michael_schaap's Avatar
michael_schaap michael_schaap is offline
Join Date: Feb 2003
Location: Northville, MI
Posts: 97
Question Bench grinder question

Would anyone know this about a bench griner.... I want to use one side of it to power a home made grinder (that uses sandpaper), however the arbor is only 1/2 inch... can I extend this arbor to spin the driver wheel?

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Old 02-19-2003, 09:32 PM
wrathlord wrathlord is offline
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Join Date: Nov 2002
Posts: 151
did you think of making a sleeve that can go over the arbor,secured by a set screw,then an extension out the other end,again secured by a set screw,thats just 1 idea,you didn't mention the make,or type of grinder your using.
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Old 02-19-2003, 10:34 PM
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Gary Mulkey Gary Mulkey is offline
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Location: Branson, Mo
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If you mean that the arbor only extends 1/2" out from the motor then I would be inclined to say no. 1/2" of shaft isn't much to hold much side torc. I would look for another motor just to be on the safe side. Used bench grinders are much cheaper than doctor's bills.

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Old 02-22-2003, 08:30 PM
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michael_schaap michael_schaap is offline
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Location: Northville, MI
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waiting anxiously

I did decide to try that grinder.... $15 is $15 and if I cant get it to work as a belt grinder I'm sure it will be a very good bench grinder Eigher way, the process of knifemaking should get a tad easier.

I'll keep you folks posted

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Old 02-27-2003, 08:55 AM
Phydeaux Phydeaux is offline
Join Date: Jan 2003
Location: California
Posts: 59
Grainger has a bunch of shaft couplers. I saw some which were a flexible type which give some compensation for misalignment.

their website is

check part no. 2X497 or do a procuct search. they also have a pretty good selection of industrial equipment and prices are reasonable.


"Coffee: we can get it anywhere,
and get as loaded as we like on
it, until such teeth-chattering,
nonsense-gibbering time as we
may be classified unable to
operate heavy machinery."
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