30 Grams Difference on 4 Blade

[Cameron Carlile]

4 Blade Emerson Air Circulator. Had it rechromed.  Clearly one side needed a lot of copper build.  Played around with washers to see what the difference between the heaviest pair of blades.  Found it to be around 30 grams difference.  Has anyone ever tried just adding low profile, nickel-coated, neodymium magnets to balance the sides.  It's chrome, so I don't really want to grind that much off one blade.

[Stan Adams]

I would check to see if one is out of clock. If so the ones closest together will be heavy

[Cameron Carlile]

Stan: I'll buy a strobe light and see if that's problematic. Any thoughts on using N52 magnets? 

[Stan Adams]

Never tried them, I would think if you added some epoxy or JB Weld, they should hold. You can check clock without a strobe, but admittedly it isn't easy nor as accurate. I balanced one I had bought for a friend in East Texas. At first it was about to fly off the pedestal it shook so hard.

[Rod Rogers]

You should try balancing by "mis-clocking" the blades. On the light side, move the blades closer together. GE did this at the factory on some of  their fans. You'd strobe a perfectly smooth running blade and find it "out of clock". Might be much easier than adding material!

 

~Sparky~