Band Saw Restoration - New Pulley!

I ended up buying a new pulley because that old hunk-of-junk pulley wobbled so much.  Buying a new one also allowed me to size it properly to get near the right spindle speed for the driven wheel.  That is, the book says the band wheel should spin at 640 rpm to produce a band velocity of 2050 feet per minute.

My old wobbly pulley was too big and that made the band wheels go too slow - around 500 rpm.  My new pulley is awesome nearly in all ways:
1.  6.25 inch diameter
2.  Cast iron
3.  No wobble

New Awesome Pulley:

But there was one problem - the standard keyway in a pulley for a 0.750 shaft is bigger than what I have on my 0.750 shaft.

The woodruff key in my 0.750 shaft is 0.125 inch, and the keyway in the pulley is 0.187.  So, there's alot of slop.  No problem - off to the machine shop!  I made a "C" shaped shim.  It goes around the woodruff key and fills up the void of the pulley's keyway.

This is a small thing, for sure.  The wall thickness of the "C" is 0.031 inch.  It took a bit of thinking to figure out simply how to hold this in the vice as I machined it.  But, in the end of the day, it fits real cozy as seen below:

While I was at it, I made a new insert for the table.  I made it out of steel, but I am now wondering if I should have made it out of aluminum.  I imagine the steel plate will quickly wear down my teeth if there should be any rubbing.  We'll see how it goes.

So the new awesome pulley is mounted, and the keyway is tight.  I mounted my motor and slung around my new Fenner Drive Powertwist Plus belt.  I'm a big fan of these belts simply because they are adjustable.  If it's a bit too long or short, it's a breeze to change.  I don't have time for multiple trips to get just the right length solid V belt when I mis-measure.

The speed works out nicely, too.  A 6.25" pulley driven by a 2.25" pulley with a 1725rpm motor yields a spindle speed of  621 rpm.  That's pretty close to the specified 640 rpm, so I'm happy.  Turning on the motor to drive the new pulley did produce a slight vibration.  Very slight.  I found the stand is only sitting on 3 of the 4 legs.  I can fix that.