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