Cyclone Dust Collector Set Up Part 2

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Forum topic by Big Ben posted 07-10-2013 01:27 PM 773 views 0 times favorited 2 replies Add to Favorites Watch
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Big Ben

87 posts in 2311 days

07-10-2013 01:27 PM

I am in the process of building a cyclone, I plan to use Oneida cyclone body and filter (cheap CL find) with Bill Pentz’s drawings for the motor housing and his recommend motor. The issue I am having is sourcing and impeller at a reasonable price. Grizzly has a 15.5” keyed impeller with 24mm(0.944882) bore for $104 shipped compared to 225 plus shipping for Clearvue 15”. My question is will an impeller with bore 24mm(0.944882) and 7/8 shaft size work together?



Cyclone Body

Dust Collector

2 replies so far

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Fred Hargis

3844 posts in 1914 days

#1 posted 07-10-2013 02:12 PM

I wouldn’t do that, use the mismatched bore sizes. The .07” difference will be substantial…and it would be tricky to get a sleeve to take up that small amount. We used to have numerous keyway failures (key slot gets wallowed out), a lot of times it was due to a poor fit between the bore and the shaft (this was usually on gears). BTW, another consideration you should keep in mind is that the Keyways need to be the same size. I put one of those Leeson motors on my Oneida SDG and found I had to have a stepped key, the impeller had a smaller keyway than the motor. But they were both US fractional, and I found a stock key for it. Matching a metric keyway (likely for the Grix impeller) to a fractional (Leeson) would probably be custom made.

-- Our village hasn't lost it's idiot, he was elected to congress.

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185 posts in 1238 days

#2 posted 07-10-2013 09:35 PM

I would want to be standing around when it’s first turned on. Bore sizes and shaft sizes have (should at least) be made for each other. You don’t want anything to slip under a load.
So this is the second reply you’ve gotten from a Fred.

Fred J. Ingate

-- Fredj

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