You might be right--one of the holes in fact did *not* have a set screw in
it!!
Now, if I can only figger out which one it was--they all look alike now!!
That third hole (w/o the set screw) similarly straddled the bushing and the
hub, and it looked threaded into both. I'll check it again.
--
Mr. P.V.'d
formerly Droll Troll
"Gary Owens" wrote in message
...
I may be reading your description wrong, but I bet 1 of the 3 holes is not
threaded into the hub, put a bolt in it and push off the hub.
gary


"Proctologically Violated©®" wrote in message
...
Awl--

Got a 10 hp centrifugal blower, and am tryna get blade off the 1" dia
motor shaft
A picture is worth a thousand words, but I'll try to convey this
succinctly.

The shaft is keyed, and on the shaft is a steel bushing, about 1 5/8
diam, finely split.
Then, on this bushing is the hub of the centrifugal fan blade assembly.

But the interesting part is how this hub is affixed to the bushing.
Right on the diameter between the bushing and the hub are three 5/16
threaded holes, such that half the hole is threaded into the bushing, and
half into the hub (as you face the shaft).
A setscrew then locks the two together--I presume.
And presumably expands the split bushing onto both the shaft and the
hub--I think. Otherwise the bushing could slide off the shaft.

Mercifully, these setscrews came out pretty easily, but needless to say
the shaft/bushing/hub are still locked tight, and there does not seem to
be any place for a wheel/gear puller to grab.

So they are all Kroil-ing away right now.
Iny idears on how to pop this bushing/hub off the shaft? I can't get
between the motor and the back of the centrifugal blades w/o
acetylene-ing the blower housing off, for a wedge, etc. Altho if I must
do this, I will.

TIA.
--
Mr. P.V.'d
formerly Droll Troll